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Alen Air Purifier Review: Best Model To Buy In 2022

With the tagline "Pure Air for Life", Alen air purifiers are known for their sturdy build quality, air-purifying capacity, and personalizable cover. In this guide, we will be looking at the latest and best Alen air purifiers to get your hands on right now. Compare every air cleaner's features, design, air coverage, filtration, and cost of ownership. While you're at it, check out each model's detailed reviews with pros and cons. Without wasting more time, let's get started on your Alen's buying journey.

2022 Best Alen Air Purifier Review

NoImageAir PurifierOnline Price (Amazon)FiltrationCoverageSpeedDimensionWeightDust CADRPollen CADRSmoke CADRPre-filterHEPA filterCarbon filterIonizerUV lightOther filterNoise levelPower outputWarrantyScore
1Alen BreatheSmart HEPA Air Purifier ReviewAlen BreatheSmart Classic Air Purifier

$$$$$$$

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3-stage1,100 sq. ft. (102 m2)4
17.8 x 26.8 x 10 in
(45.2 x 68.1 x 25.4 cm)
21 lb (9.5 kg)300 cfm (510 m3/h)300 cfm (510 m3/h)300 cfm (510 m3/h)
Washable Pre-filter (with HEPA filter)
6 - 18 months
HEPA-Pure Filter BF35
6 - 18 months
+- 69
-
Ionizer
-
-
42-56 dB64 - 105 WLifetime Limited Warranty4.5
2Alen BreatheSmart 75i Air Purifier ReviewAlen BreatheSmart 75i Air Purifier

$$$$$$$

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3-stage1,300 sq. ft. (121 m2)5
18.5 x 27 x 11.5 in
(47 x 68.6 x 29.2 cm)
27 lb (12.2 kg)347 cfm (590 m3/h)347 cfm (590 m3/h)347 cfm (590 m3/h)
Washable Pre-filter (with HEPA filter)
12 - 18 months
Pure Antimicrobial True HEPA Filter B7-Pure
12 - 18 months
+- 99
-
Ionizer
-
-
25-49 dB1.8-45 WLifetime Limited Warranty4.6
3Alen BreatheSmart 45i Air Purifier ReviewAlen BreatheSmart 45i Air Purifier

$$$$$

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3-stage800 sq. ft. (74 m2)4
15 x 25 x 8.5 in
(38.1 x 63.5 x 21.6 cm)
15 lb (6.8 kg)245 cfm (416 m3/h)245 cfm (416 m3/h)245 cfm (416 m3/h)
Washable Pre-filter (with HEPA filter)
6 - 18 months
HEPA-Pure Filter FL40
6 - 18 months
+- 59
Ionizer
-
-
23-49 dBA50 WLifetime Limited Warranty4.2
4Alen BreatheSmart FIT50Alen BreatheSmart FIT50 Air Purifier

$$$$$$$

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3-stage900 sq. ft. (84 m2)4
16.8 x 22.3 x 10 in
(42.7 x 56.6 x 25.4 cm)
16 lb (7.3 kg)220 cfm (374 m3/h)220 cfm (374 m3/h)220 cfm (374 m3/h)
Washable Pre-filter (with HEPA filter)
6 - 18 months
HEPA-Pure Filter FF50
6 - 18 months
+- 79
-
Ionizer
-
-
32 - 49 dB60 WLifetime Limited Warranty4.5
5Alen BreatheSmart FLEX Air Purifier ReviewAlen BreatheSmart FLEX Air Purifier

$$$$

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2-stage700 sq. ft. (65 m2)4
15 x 25 x 8.5 in
(38.1 x 63.5 x 21.6 cm)
15 lb (6.8 kg)245 cfm (416 m3/h)245 cfm (416 m3/h)245 cfm (416 m3/h)
Washable Pre-filter (with HEPA filter)
6 - 18 months
HEPA-Pure Filter FL40
6 - 18 months
+- 59
-
-
-
39 - 55 dB36 WLifetime Limited Warranty4.5
6Alen T500Alen T500 Air Purifier

$$$

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3-stage500 sq. ft. (46 m2)3
10 x 22 x 6 in
(25.4 x 55.9 x 15.2 cm)
21 lb (9.5 kg)159 cfm (270 m3/h)159 cfm (270 m3/h)159 cfm (270 m3/h)
Pre-filter
Permanent
HEPA-Pure Filter TF60
6 - 12 months
+- 44
-
Ionizer
-
-
42 - 56 dB30 - 53 WLifetime Limited Warranty3.5

What To Look For?

As every model varies in air cleaning performance, picking the right Alen air purifier is important as it is designed to last for a lifetime. To help you identify which air purifier works best in improving indoor air quality based on your needs, here are the features you to consider when buying one.

  • Dimension and design - Pick something that you are comfortable pacing and using at home. Alen air purifiers come in a few different types and sizes that cater to all segments. Opting for BreatheSmart models and you have the luxury of customizing the front panels that to suit your home decor.
  • Weight and portability - Not known for its compact form or travel-friendly size, a typical Alen air purifier weighs between a reasonable 12-21 pounds. You can still move it with minimal effort by grabbing it on the back handle.
  • Pricing - Other than the T500 that is priced under 200 dollars, Most BreatheSmart models will set you back between 399 to 750 dollars. Still, the value and performance Alen air purifiers bring to the table are unmatched. Discounts are scarce that usually happen during holiday seasons e.g. Summer sales, Black Friday.
  • Filter replacement cost - Depending on the filter grade, Alen filters costs range from reasonable to expensive depending on which type of filters you go for. We highly recommend you upgrade the basic filter with an activated carbon filter to deal with smoke particles.
  • Room size - Air cleaning coverage is never an issue with Alen air purifiers. All BreatheSmart models can cover large room sizes with at least 2 air changes per hour. If you intend to use it as a whole-room air cleaner, go with a bigger model or refer to the manufacturer's recommended room size.
  • Clean air delivery rate (CADR) - The higher the ratings, the faster clean air can be achieved. CADR is AHAM developed metric that measures the air cleaning capacity of an air purifier in cubic feet per minute (CFM). Note that not all Alen air purifiers participate in the CADR test.
  • Multi-stage air filtration - Alen air purifiers come standard with a permanent pre-filter, True HEPA filter, and an ionizer. The long-lasting H13 True HEPA filter is certified 99.99% air particles removal efficiency down to 0.1 microns. A standalone activated carbon filter is optional but highly recommended.
  • Noise and power consumption - Alen air purifiers are suitable for night use as reviewed by SleepScore Labs. However, it is not completely silent, especially when running on turbo speed. The same applied to energy usage, you can achieve maximum efficiency only with Auto mode enabled.
  • Supporting features - Newer Alen air purifier models are packed with practical functions that would greatly enhance usability. Standard features include a Smart sensor, Auto mode, timer, air quality indicator, child lock, and filter change indicator. Premium features include WiFi-enabled support and remote control.
  • Warranty and after-service - Alen will stand by their air purifiers for life. Every model is backed by a lifetime warranty as long as it is purchased from an official with registration and with an active filter subscription. Customer satisfaction is also great with local support via phone or email.

The one that started it all. Alen BreatheSmart air purifier classic is the OG model that has everything you need. At a console size of 17.8 inches in width, 26.8 inches in height, and 10 inches in depth, it is slightly large where you might have a hard time placing it in a tight area. Thankfully the 21 lb weight is manageable that you can use Alen BreatheSmart around the house via the back handle. Alen BreatheSmart's modern exterior supports many customizable panels that you can purchase to enhance the look and feel. Air inlets are nicely tucked at the sides and bottom with an air outlet at the top for extended distribution.

Usability-wise, Alen Classic BreatheSmart air purifier conventional button-operated control that is very straightforward to use. You have a standard 4 fan speeds ( 1, 2, 3, turbo) plus SmartSensor auto mode that only uses top speed when indoor air quality worsens. You can also set the 4, 8, 12 preset countdown timers to shut down the air purifier and lock the controls via child lock. Surrounding the main power button is the AQI that will display blue when indoor air is clean, yellow when moderate, and red when indoor air is dirty. Other features include the option to enable/ disable the ionizer, indicator light, and reset the filter life from red to green after you have successfully replaced the filter.

Overall, build quality is solid with no byproducts and air by-pass leakage spotted. Alen BreatheSmart Classic is UL listed, Energy Star certified, and is shielded by Alen's lifetime limited warranty with product registration and active filter subscription.

Air cleaning performance without compromise. Alen BreatheSmart Classic air purifier can cater to a large 1,100 square footage of room size at 2 air changes per hour or every 30 minutes. For those that need higher clean air frequency, you can increase to 4 air changes per hour or every 15 minutes for a reduced 690 square footage. The airflow delivery rate is from 150 cfm to a max 286 cfm (turbo speed). CADR, on the other hand, is estimated to be around 300 cfm for dust, pollen, and smoke. Works flawlessly in the living room, lounge, bedroom, basement, garage, kitchen, or playroom.

With its famous WhisperMax technology, Alen BreatheSmart Classic output an average of 42 to 56 decibels. In auto mode, you will barely hear any fan noise unless there is an increase in airborne pollutants detected. Ideal for all-day use that you can run it 24/ 7 while you work or sleep. Power consumption is on the higher side for an Energy Star Certified model. Running between a max of 64-105 watts, you will only feel the slightest pinch on the monthly utility bill even with daily operation.

By default, Alen BreatheSmart Classic air purifier comes with a HEPA-Pure bundled filter set that covers most household pollutants. The permanent pre-filter traps large particles like hair, lint, dust so they will not end up clogging and damaging the HEPA filter. You can wash and reuse the pre-filter, unlike other disposable filters. The medical-grade True HEPA filter capture 99.99% of airborne particles as small as 0.1 microns. For an asthmatic person, you can opt for the addon HEPA-Silver filter upgrade that specializes in removing biological pollutants like mold, mildew, and germs. To deal with toxic fumes, choose the HEPA-FreshPlus filter that neutralizes chemicals like VOCs, cigarette smoke, carbon monoxide, and radon. HEPA-OdorCell filter absorbs musty smell, stinky pet, diaper odor, and other nauseating smells found in a household. Lastly, the optional ionizer release negative ions that electrostatically attach to positive ion particles in the air. The combined particles will fall due to the increased weight allowing the Alen BreatheSmart air purifier to capture.

For around 650 dollars before any discount or addons, Alen BreatheSmart air purifier has a hefty price tag that might not bold well with many. You are getting the best air cleaning performance and specification bar the WiFi-enabled. However, the default HEPA filter does not come with a carbon filter unless you are top-up for the optional upgrade. We recommend you do so as the recurring filter cost is actually quite affordable. Minor complaints include the audible background white noise when Alen BreatheSmart runs on turbo speed that can be annoying at times. Ignoring that, Alen BreatheSmart is our top pick when we want the best HEPA air purifier without the fancy tech.

online price (US)**
±649.00 $$$$$$$/ 7

(annual filter cost ±46-138)

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The latest and greatest Alen BreatheSmart air purifier to date. At a reasonable size of 18.5 x 27 x 11.5 inches, Alen BreatheSmart 75i houses a familiar console design that we loved for years. The modern aesthetics are complemented by custom panels that you can swap it out with many of the available designs. The 27 pounds weight is on the heavier side to carry but not totally impossible. Air inlets are located at the sides and you have a back handle that helps with the portability. Fitting is tight with no signs of harmful byproducts released. It is CARB-approved ozone safe that produces less than 0.001 PPM of ozone with ionizer enabled. Reliability is one of Alen's selling points as the lifetime warranty guarantees trouble-free ownership with an active filter subscription.

Using Alen BreatheSmart 75i air purifier is a joy as everything is laid out symmetrically in front of you. You can select up to 5 speeds including the high-performance turbo mode and Auto mode. In auto mode, the air purifier will move the fan speed up or down depending on how good is the room air quality. There is also a lights-off sleep mode that activates automatically when the room is pitch back after a couple of minutes. The dedicated child lock function prevents children from messing with the setting. The optional ionizer can be activated/deactivated at a click of a button. Another surprising feature that many people don't know is that Alen BreatheSmart 75i is actually WiFi enabled by default. You can access most of its functions via your smartphone but the app is still under development at the point of this writing.

Continue the features list, there is also a 2, 4, 12 hours countdown timer that can be set to turn off the air purifier. Circling the power button is the AQI light that will be in blue when air quality is excellent, green when air quality is good, orange when air quality is fair, and red when air quality is poor, and purple when air quality is bad (dirty). Last but not least, the real-time filter indicator light will let you know the exact time to replace the filter.

Alen BreatheSmart 75i is the pinnacle of a large room air purifier that delivers strong and consistent airflow between 95 to 350 cfm. Under normal circumstances, it can reach up to 1,300 square footage of air cleaning space with 2 air changes per hour (30 minutes). For an asthmatic sufferer or a sick person, you can increase to 4 air changes per hour (15 minutes) and still receive a healthy 650 square footage of purifying coverage. CADR tally with the airflow delivery rate averaging around 347 cfm for dust, pollen, and smoke. Place Alen BreatheSmart 75i in large room sizes or equivalents like living room, mansion bedroom, finished basement, garage/ workshop, home offices, nursery home, or playroom.

The best air purifier deserves the best medical-grade filtration. Nearby air pollutants will be drawn in via the motor fan and block by the washable pre-filter from passing through. With most PM10 particles trapped, the H13 True HEPA filter capture 99.99% of airborne particles down to 0.1 microns including mold, mildew, pollen, lead dust, germs, bacteria, and viruses (independently lab tested). While it is effective and sufficient for most residential homes, you can up the filtration grade from a mere 20 dollars. Choose from HEPA fresh filter for chemical and mild odor, HEPA Pet filter that specialized in capturing pet-related allergens, or HEPA heavy odor filter that is perfect for heavy odors including baby diapers. The ionizer discharges millions of natural negative ions that merge with positive ion airborne pollutants causing them to fall and be captured. Negative ions are safe and beneficial to our health despite producing a very insignificant of ozone. You can disable it at any time if you feel uncomfortable using it.

Another good thing about Alen BreatheSmart 75i air purifier is the added power did not affect the noise output. You're still getting a whisper quiet 25 decibels noise level at the lowest speed to a max 49 decibels similar to rainfall. The auto-sleep mode allows you to sleep soundly at night without breathing in the dangerous allergens. Power usage is also under Energy Star's 40% efficient tier so it will not hit you with a hefty bill at end of the month. You can leave Alen BreatheSmart 75i air purifier running all day comfortably without any noise distraction.

If you want the best, you will have to pay for it. The starting price of Alen BreatheSmart 75i is around 750 dollars before accounting for the addon panels and filter upgrade. That's about a 100 dollars more premium over Alen BreatheSmart Classic for a slight performance boost and WiFi-enabled feature. Adding to the cost, the all-in-one filter set is convenient to replace and at a reasonable under 100 price, there is no option to replace them individually. We do think the air filtration performance itself will cover the cost, there are other cheaper Alen BreatheSmart alternatives below that you could consider as well.

online price (US)**
±749.00 $$$$$$$/ 7

(annual filter cost ±66-99)

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Want 75i but can't bear the high price tag? Alen BreatheSmart 45i air purifier has you covered. It is a smaller but identical model that comes with many beautiful custom panels you can choose from. At a 15 inches width, 25 inches height, and 8.5 inches depth, the air purifier fits well in most homes without cluttering up your interior space. You can move it around for room-to-room purifying via its reasonably light 15 pounds weight works great. Just grab on to the back handle to bring it wherever you go. Design-wise, it uses the familiar console setup with air inlets at both sides and a top air outlet. Build quality is on par with the rest of Alen lineup so it will withstand some rough usage. Alen BreatheSmart 45i is officially UL listed and ozone-safe that emits less than 0.001 PPM of ozone. The lifetime warranty is the best advocator of reliability that guarantees a worry-free purchase.

Alen BreatheSmart 45i comes with all the standard features that can be accessed via the top control panel. Choose between the 4 fan speeds (Low, Medium, High, Turbo), activate the ionizer, or use the Smart sensor driven auto mode. In auto mode, Alen BreatheSmart 45i autonomously sets the fan speeds high when air quality drops and low when the air quality improves. You can see the immediate changes to the air quality via the AQI color rings at the center. There is also auto sleep mode that activates automatically when there is no light detected. A 2, 4, 12 hours timer is also present to help converse energy. The filter reset button with a real-time filter replacement indicator alerts you when the filter requires replacing. Alen BreatheSmart 45i comes with WiFi capacity but many people are unaware of it as it is not heavily promoted. To gain remote access to the air purifier controls, you will have to pair with your smartphone and use third-party apps like TUYA's "Smart Life" for the time being.

Compared with 75i, the lower variant Alen BreatheSmart 45i air purifier still delivers a wide 800 square footage of air cleaning at 2 air changes per hour (every 30 minutes). Increase to 4 air changes per hour (every 15 minutes) for a reduced 400 square footage of purifying coverage. CADR is averaging 245 cfm for dust, pollen, and smoke according to AHAM guidelines. With 70-215 cfm of airflow delivery rate, you can enjoy clean, fresh air within 1-2 hours. Suitable for loft, studio apartment, or standard residential home within Alen BreatheSmart 45i cleaning radius.

The reduced airflow performance did not give Alen BreatheSmart 45i an edge over its 75i counterpart. It outputs a silent 23 to 49 decibels noise level depending on the fan speed the air purifier is running. It will not disturb your sleep even if you're not a big fan of background white noise. Likewise, the Energy Star power consumptions are identical to the higher variant around 45-50 watts hourly. In most states, it will only cost you between 2-5 dollars monthly to keep Alen BreatheSmart 45i running all day.

Independently lab tested on its efficiency, Alen BreatheSmart 45i can protect you and your family from harmful airborne allergens. The permanent pre-filter traps large PM10 particles that flow in and prevent them from clogging the HEPA filter. The standard H13 True HEPA filter captures 99.99% of airborne allergens down to 0.1 microns e.g. dust mites, mold, pollen, pet dander, bacteria, and viruses. Since the default HEPA-pure filter does not come with any smoke filtration, you can upgrade it with HEPA fresh filter with antimicrobial treatment for an extra 15 dollars. HEPA OdorCell filter is great that absorbs strong odors coming from common sources such as pets, foods, diapers. Add another 30 dollars to opt for the premium Heavy smoke HEPA filter with 2+ lbs of activated carbon that neutralize chemical fumes, VOCs from aerosol sprays and paints. There is also a filter-free ionizer that pulls down pollutants in the air for the HEPA filter to capture. Ion technology is a proven and safe technology that generates natural negative ions rather than harmful ozone that many are misled so.

Around 300 less than its counterpart, Alen BreatheSmart 45i is listed around 468 dollars before discount. A great deal considering the specs you will get is a mirror to 75i. Nonetheless, it is still far from cheap and the filter replacement can be costly depending on the filter type and how unhealthy the indoor air quality is. Other niggling complaints include the limited support for WiFi and expensive custom panels. None will affect its airflow performance.

online price (US)**
±468.00 $$$$$/ 7

(annual filter cost ±39-118)

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A mid-child between Classic and Flex, the Alen FIT50 air purifier is a modern yet familiar air purifier from the Alen BreatheSmart lineup. At a smaller body size of 16.8 x 22.3 x 10 inches and a total weight of just 16 pounds, moving Alen BreatheSmart FIT50 is an effortless chore. We are a big fan of the Rosewood custom panel that adds flair to a home. If you aren't, there are more than a dozen of add-on custom panels you can purchase. Air inlets are nicely tucked behind with a conventional top air outlet placement. Build quality is solid and is protected by Alen's lifetime limited warranty. An awesome perk that we mentioned time and time again.

Alen BreatheSmart FIT50 air purifier comes with a classic control panel that is well labeled with dedicated indicator lights. You can cycle between the 4 fan speeds and activate/ deactivate the ionizer based on your preference. The built-in Smart Sensor allows the use of Auto mode that uses higher fan speed when there is a large concentration of air pollutants nearby. Advanced Smart Filter accurately reads and alerts you to replace the filter set based on usage/ condition. The AQI will change its color based on the surrounding air quality. It will illuminate blue when the air quality is good, yellow when it is at a moderate level, and red when there are high levels of air pollutants detected. The child lock button prevents children or pets from messing with the controls. You also have the option to disable all display lights to reduce glaring during sleep.

Alen BreatheSmart FIT50 is no slouch when it comes to air cleaning performance. With an airflow delivery rate of 110 to 231 cfm, it will have no problem removing all types of indoor air pollutants. At full speed, BreatheSmart FIT50 can cover a wide 900 square footage at 2 air changes per hour (every 30 minutes) or 450 square footage at 4 air changes per hour (every 15 minutes). Dust, pollen, and smoke CADR are rated at an average of 220 cfm as tested by ENERGY STAR. Ideal for large room sizes like living room, bedroom, kitchen, basement, garage, nursery home, and open space office. Noise is well-contained by its WhisperMax technology. It outputs a low noise of 32 to 49 decibels that will not cause a disturbance when you're trying to work or get a shut-eye. Power consumption is averaging at 60 watts per hour similar to other Energy Start rated BreatheSmart models.

The filtration that never fails. Alen BreatheSmart FIT50 works by pulling air in and large particles like dust, hair will be blocked by the washable pre-filter velcro to the HEPA filter. Since it is reusable, you can easily take out the pre-filter for cleaning to prolong the HEPA filter lifespan. In return, the HEPA filter helps capture fine particles in the air like mold, pollen, pet dander, and germs. To deal with smoke particles, you can choose to upgrade the default HEPA-Pure filter with either HEPA-FreshPlus filter that targets chemical, smoke, VOCs, HEPA-Silver filter that specialize in mold, germs, and other allergens linked with asthma, or HEPA-OdorCell that neutralize strong odors like stinky old diapers, food, pets. The final ionizer will continue releasing negative ions to attach and pull down positive airborne pollutants for the filter to capture.

With the newer 45i and 75i series dominating BreatheSmart sales, Alen FIT50 air purifier is a value buy for those that need the filtration performance but don't mind a dated model. Keep in mind that the estimated 549 dollars are not everyone's cup of tea and this is excluding filter upgrade and addon purchase. The filter replacement cost is more attainable if you could stretch it out to 18 months. On normal use, it will cost you between a low 46 to 138 dollars annually. So if you are going with FIT50, do check out Alen BreatheSmart 45i for a better comparison.

online price (US)**
±588.00 $$$$$$$/ 7

(annual filter cost ±53-158)

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The cheapest, smallest, and most flexible BreatheSmart model to date. Alen BreatheSmart FLEX is an attainable air purifier for those that don't not a whole much. Featuring a dimension of just 15 inches in width, 25 inches in height, and a slim 8.5 inches in depth. You can place Alen BreatheSmart FLEX even in tight places that other models simply can't. The light 15 pounds weight inclusive of the filter allows you to move the air purifier around the house. Shift from your home desk in the morning, kitchen while cooking, to bed at night simply by grabbing on the back handle. Design-wise, the BreatheSmart trademark custom panels are that you can choose from the many colors to a wood trim design. The side air and bottom air inlets synchronize well with the top air outlet location. Not cutting cost measures on the build quality as everything remains top-notch complimented by Alen's lifetime warranty.

Instead of physical buttons, Alen BreatheSmart FLEX air purifier has a capacitive touch panel that chimes. The well-lit buttons allow you to cycle between the 4 fan speeds including Turbo mode that swiftly cleans the air when the indoor air has gone bad. A 2, 4, 12 hours timer is also here that can be set to turn off the air purifier. Filter life button reset the red indicator light and countdown time after you have successfully changed to a new filter. Lastly, the lock function disables all controls so children would not able to mess with the settings. Simply press and hold the lock buttons for 3 seconds to unlock it. The 2 obvious functions missing here are the auto and ion mode to accommodate the lower price bracket.

Here's where Alen BreatheSmart FLEX HEPA air purifier differentiates itself from others. You're getting a reduced 700 square footage air coverage at 2 air changes per hour or 350 square footage at 4 air changes per hour. Not bad but it is meant for bedroom use, kitchen, small basement, garage, studio home within the medium room size category. The airflow delivery rate of 53 to 187 cfm also resulted in a lower CADR at an estimated 245 cfm range. It will take a slightly longer time to clean the air in your home. WhisperMax technology helps keep noise levels down between a whispering 39 decibels to a white noise 55 decibels. Again, the lack of auto mode means you will have to manually adjust to the lowest speed right before you head to bed in order to keep the noise down. Energy Star certified power usage is at an efficient 36 watts hourly. It will not increase your electricity bill significantly even after long-haul.

Despite the small body, Alen FLEX uses the exact same filtration as other BreatheSmart models. The velcro attached pre-filter protect and blocks large particles like dust, hair, lint from clogging the HEPA filter. Depending on the filter sets you opt for, the default HEPA-pure filter is effective at capturing microscopic particles like mold, pollen, pet dander, and lead dust. To counter smoke and odor, upgrade to the HEPA OdorCell filter that specializes in absorbing stinky smells from food, diapers, or pets. To deal with stronger chemicals, choose the HEPA FreshPlus filter that removes asthma triggers like cigarette chemicals, VOCs, and smoke. The HEPA Silver filter focus on dealing with mold, germ, bacteria, and other biological pollutants. Out of the 4 filter sets, we recommend going with OdorCell or FreshPlus filter that comes with an additional carbon filter.

For around 349 dollars, the Alen BreatheSmart FLEX air purifier is the cheapest in the BreatheSmart lineup but comes at a cost. You're getting a much weaker air purifying performance and CADR. Air quality indicator and auto mode are also missing here due to the lack of a built-in sensor. On the flip side, annual filter replacement is the most economical although not by much. Our heart still goes for Classic, but choose Alen BreatheSmart FLEX if money is tight.

online price (US)**
±349.00 $$$$/ 7

(annual filter cost ±39-118)

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The oldest, smallest, and most affordable tower air purifier in Alen’s lineup. Non-BreatheSmart Alen T500 air purifier is only at a 10 inches width, 22 inches height, and 6 inches depth size. Perfect for a TV cabinet, desktop, and bedside placement as it occupies little space. The under 9 pounds weight is perfect to bring it around everywhere you go even on a staycation. While the conventional design is more practical with surrounding air inlets, it is highly functional which is important for an air purifier at this price point. Fitting is good with no signs of off-gassing or misalignment. You're getting the complete Alen lifetime Limited Warranty despite the budget price.

Alen T500 is very easy to use despite the old-school non-digital controls. You can adjust the 3 fan speeds, set the 12-hour timer, and reset the filter indicator light after you change the filter. There is also a dedicated ionizer button that allows you to turn on or off the ionizer at any point of the purification. No air quality indicator, auto mode, or sleep mode is available given the non-existence sensor. Everything has to be done manually.

Designed for desktop use, Alen T500 air purifier can cover up to 500 square footage of room space at 2 air changes per hour. More than enough for close range when the air purifier is placed close to you during work or sleep. The airflow delivery rate is from 48 cfm and peaks at 130 cfm. CADR is averaging at 159 cfm for dust, pollen, and smoke. Not magnificent but it will more than decent for most folks.

Noise level is not in Alen T500 favors at it outputs a 42 to 56 decibels in spite of the reduced airflow output. You can still use it quietly as long as you keep the fan speed at low. Power consumption is efficient between 30 to 53 watts but we since more energy-saving units for its segment.

Alen T500 air purifier runs on a 3-stage filtration setup that you should be acquainted with by now. The pre-filter traps large airborne particles like dust, hair and extend the HEPA filter lifespan. The pre-filter is washable so no replacement is needed unless it is damaged. The default HEPA-Pure filter traps fine particles that bypassed the pre-filter as small as 0.3 microns. To deal with odor, smoke, and chemical fumes, you need to upgrade the filter to either HEPA-Fresh or our favorite HEPA-OdorCell filter. For mold and germs-related allergens that are causing you to fall sick, opt for HEPA-Silver instead. The safe ionizer diffuse negative ions to bond with positive ions pollutants in the air. the bonded ions will fall down due to the increased weight and Alen T500 will draw in the unwanted pollutants.

For a shy of under 200 dollars, Alen T500 is by far the cheapest release from the brand. For this price, you're getting exactly what it is designed for. A good HEPA air purifier delivers in a compact form. The 44-88 dollars filter replacement cost might be the biggest obstacle for some as there are other more maintainable air purifiers out there. If you could live with the annual filter cost and lack of autonomous mode, Alen T500 would be a good buy to kick start your air purifying journey.

online price (US)**
±249.00 $$$/ 7

(annual filter cost ±44-88)

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** MRSP (Manufacturer's Suggested Retail Price)/ RSP (Retail selling price) is provided by cleanairprice.com. Accurate at the time of posting.
^ Annual filter cost is calculated based on filter price and 12 hours of usage. Pricing could vary depending on air quality, usage frequency, and speed.
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Is Alen BreatheSmart Worth It?

All Alen BreatheSmart air purifier is good value for money, particularly with the superior lifetime warranty. It comes with a washable pre-filter, True HEPA filter, activated carbon filter, and ionizer. The air cleaning performance and room size coverage are also excellent for its class. You're also getting tons of features including timer, AQI, and auto mode. The ideal air purifier for long-term investment.

How Does Alen Purifier Work?

Using a multi-stage air filtration, air will be pulled in and PM10 particles will be blocked by the pre-filter from passing through. The HEPA filter captures microscopic particles in the air and the optional carbon filter absorbs smoke, odors, toxic fumes. The ionizer emits positive and negative charged ions that cause the airborne pollutants to stick together and fall for the Alen BreatheSmart air purifier to capture.

How Do I Reset My Alen Air Filter Light?

When the filter change indicator light turns red, it is time to replace the filter. Remove the existing filters and replace them with a brand new filter set. Turn on the air purifier, press and hold the filter button for 5 seconds to reset the filter indicator light back to green.

How Long Do Alen Filters Last?

Alen BreatheSmart filters can last between 6 to 18 months depending on how heavy usage it is. Under heavily polluted areas, Alen recommends changing the filter every 6 months to ensure the best filtration performance and extend the life of your air purifier. The excessive dirty pollutants collected can wear out the filter and reduce the air cleaning efficiency.

What Do The Colors Mean On Alen Air Purifier?

The 3 colors displayed in the air quality indicator hold different information: Blue = clean air with a low concentration of airborne particles. Yellow or purple = Medium air pollution with a moderate concentration of airborne particles. Red = Polluted air with a heavy concentration of airborne particles detected.

Where Are Alen Air Purifiers Made?

Alen Corporation is located in Austin, Texas. All Alen air purifiers are made in the USA.

Are Alen Filters HEPA?

Alen only uses a medical-grade (H13) True HEPA filter to remove 99.99% of airborne particles down to 0.1 microns including dust, mold, pollen, pet dander, and germs. It is the safest, most effective filtration in the world used in hospitals and other healthcare centers.

Which Alen Filter Is Best?

The best pick would be HEPA fresh filter as it offers great smoke and odor filtration at the lowest cost. Depending on the models, you could also opt for HEPA-Silver, HEPA-Pet, HEPA-FreshPlus, HEPA-OdorCell, or HEPA heavy odor filter. As for air purifiers, Alen BreatheSmart 75i is the best BreatheSmart model to date with a max airflow of 347 CFM and cleaning coverage of 1,300 square footage. It is quiet, versatile, and packed with tons of practical features.

Can You Vacuum Alen Air Filter?

Only the washable pre-filter is vacuumable. It is made out of mesh fabric layers with velcro to trap larger particles like dust and hair. Gently vacuum with a brush attachment every 1-3 weeks or when necessary. Both the HEPA and carbon filter cannot be vacuumed.

Alen Air Purifiers

References

Max Fernandez

A loving father and a dedicated reviewer for airfuji.com with more than 1000 air purifiers under his belt. Max Fernandez is also one of the million patients currently suffering from asthma. Feel free to nudge him if you have any questions.