Alen BreatheSmart FIT50 Review

Yet another BreatheSmart series air purifier engineered with top-notch fitting, Alen BreatheSmart FIT50 stands out on its all-round reliability and an exterior with multiple covers to choose from. Utilizing a long lasting build quality, Alen BreatheSmart FIT50 is recommended for owner that require an air purifier that can hold up to constant usage. Focusing on the airflow output, applicable area, noise level and power usage, so what would make Alen BreatheSmart FIT50 stand out from the other BreatheSmart series air purifiers? Without further delay, find out more about Alen BreatheSmart FIT50 below.

Retail suggested cost*
+- 499
Annual filter cost^
+- 53 - 158
    Latest Amazon price    
+- 53 - 158
Check price

Alen BreatheSmart FIT50 Specification

ProductRSPRetail suggested cost Link
WeightCoverage (up to)Dust free (CADR)Pollen free (CADR)Smoke free (CADR)Airflow speedFanspeedFiltrationA filterAnnual filter cost ($)
- Lifespan
- Replacement cost ($)
HEPA filter
- Lifespan
- Replacement cost ($)
Carbon filter
- Lifespan
- Replacement cost ($)
Ionizer/ Technologies
UV-light/ PCO
Other filter
All-in-one filter
- Lifespan
- Replacement cost ($)
Optional/ Addon
Noise levelPower consumptionTimer/ ScheduleSensorsMore color optionsAuto modeAir qualityAQ indicatorFilter change indicatorWi-Fi/ BTBluetoothENERGY STARRemote controlChild lockWarrantyEmail/ Phone support
Alen BreatheSmart FIT50
+- 499
16.8 x 22.3 x 10 in
(42.7 x 56.6 x 25.4 cm)
16 lb (7.3 kg)900 sq. ft. (84 m2)220 cfm (374 m3/h)220 cfm (374 m3/h)220 cfm (374 m3/h)110-231 cfm (187-392 m3/h)43-stage+- 53 - 158
HEPA-Pure Filter FF50
6 - 18 months
+- 79
6 - 18 months+- $89
HEPA-OdorCell Filter F50-MP
6 - 18 months+- $129
HEPA-FreshPlus Filter FF50-VOC
6 - 18 months+- $119
32 - 49 dB60 W2, 4, 12 hoursSmartSensor
Lifetime Limited Warranty

Product images

Alen BreatheSmart FIT50 key features

  • 3-stage filtration with built-in ionizer
  • Washable pre-filter
  • HEPA-Pure filter (swappable - see optional)
  • 4 fan speeds plus auto mode
  • Advanced SmartSensor
  • Changeable front cover panel
  • Child-lock control panel and child-safe vent guard
  • 4, 8, 12 hour timer
  • Smart Filter Light indicator
  • Alen Lifetime limited warranty
  • [Optional] filters - HEPA-Silver filter, HEPA-FreshPlus filter, HEPA-OdorCell filter

The starters

Alen BreatheSmart FIT50 dimension
16.8 x 22.3 x 10 in
(42.7 x 56.6 x 25.4 cm)
Alen BreatheSmart FIT50 weight
16 lb (7.3 kg)

Slightly smaller than the standard BreatheSmart model, Alen BreatheSmart FIT50 retains its conventional body size at 16.8 x 22.3 x 10 in that feels a lot more compact in real life. Overall Weight also dropped at only 16 lb (compare with 21 lb) which mean moving the air purifier around is no issue. Almost everything from the design cue is brought forward including our favorite swap-able front panel. Select one of the 14 beautiful front cover panel ranging from Seafoan-Green to Rosewood design. On to the usability, if you are familiar with BreatheSmart series controls, Alen BreatheSmart FIT50 would fit right in as everything is pretty much identical. With 4 fanspeed and an optional Ionizer button in the control, other features you would find in this 3-stage filtration air purifier including WhisperMax technology, SmartSensor with auto mode, air quality indicator with display, sleep mode, Advanced Smart Filter that automatically adjust filter replacement time based on usage/ condition, Child-lock/ Auto-off safety feature, UL listed, ENERGY STAR rated and Lifetime limited warranty.

Airflow, CADR and everything in between

Alen BreatheSmart FIT50 coverage
Purifying coverage
900 sq. ft. (84 m2)
Alen BreatheSmart FIT50 airflow speed
Airflow speed
110-231 cfm (187-392 m3/h)
Alen BreatheSmart FIT50 fanspeed
First thing first, Alen BreatheSmart FIT50 airflow performance might be slightly second-rate to the standard version however at 900 sq. ft applicable area, it greatly outshines other similar class air purifiers. Airflow delivery rate is also commendable at 110-231 cfm rate between its 4 fanspeed.
Alen BreatheSmart FIT50 dust CADR
220 cfm (374 m3/h)
Alen BreatheSmart FIT50 pollen CADR
Pollen CADR
220 cfm (374 m3/h)
Alen BreatheSmart FIT50 smoke CADR
Smoke CADR
220 cfm (374 m3/h)
CADR is at an average of 220 cfm (tested by ENERGY STAR) no doubt Alen BreatheSmart FIT50 would be ideal in living hall, bedroom or kitchen. Learn more about the air purifier and its closest competitors performance via the link above.

What’s inside count

Alen BreatheSmart FIT50 Pre-filter
Alen BreatheSmart FIT50 HEPA filter
HEPA-Pure Filter FF50
6 - 18 months
Alen BreatheSmart FIT50 technologies
^ Alen BreatheSmart FIT50 filters/ lifespan/ price
Let's start with the permanent pre-filter. Its washable and works exactly as advertised; trap large-size pollutants such as pet hair, dust while prolonging HEPA filter lifespan. Uniquely Alen, you have the option to choose 1 of the 4 types of HEPA filter that each has their own specialty. The default HEPA-Pure filter is effective against common household allergens but it lacks any deodorization filtration. HEPA-FreshPlus is the enhanced version that would target, chemical, smoke and VOCs dispersed from home. For mold, germs issue that relates to asthma, you have the HEPA-Silver. Finally HEPA-OdorCell is magnificent against stinky old diaper and pet odor. On leftover or unclear pollutants, the optional ionizer would comes into play.

Alen BreatheSmart FIT50 is covered against

Alen BreatheSmart FIT50 VS Dust



Alen BreatheSmart FIT50 VS Pollen



Alen BreatheSmart FIT50 VS Hair

Hair/ Pet hair


Alen BreatheSmart FIT50 VS Dust mite

Dust mites


Alen BreatheSmart FIT50 VS Mold/ Mildew

Mold/ Mildew


Alen BreatheSmart FIT50 VS Pet dander

Pet dander


Alen BreatheSmart FIT50 VS Virus/ Germ

Virus/ Germ


Alen BreatheSmart FIT50 3-stage filtration is efficient when stand up against large and small pollutants, allergens, irritants, viruses and bacteria. Depend on 110-231 cfm airflow input/ output and wide 900 sq. ft. purifying coverage, Alen BreatheSmart FIT50 comes along with Pre-filter, HEPA-Pure Filter FF50 filtration is fantastic in eliminating dust, hair, mold, spores, mildew, pollen, germs, dust mites and pet dander.  An addon buy filter is required so Alen BreatheSmart FIT50 can correctly address chemicals, odors, cooking smell, fire, VOCs, tobacco smokes, cigarette, vapor, radon and ammonia.

Keep it down

Alen BreatheSmart FIT50 noise level
Noise level
32 - 49 dB
Alen BreatheSmart FIT50 power consumption
Power consumption
60 W
Alen BreatheSmart FIT50 32 - 49 dB noise level is less noisy than standard BreathSmart model but you could hardly tell the differences in normal circumstances. For night use we recommend switching on to Auto mode as the air purifier would automatically adjust the fanspeed so it would interrupt your sleep. Power consumption is at an average 60 W, not too much differences between standard BreatheSmart and slightly better than other similar range air purifier.

At what cost

Alen BreatheSmart FIT50 annual filter replacement cost
Annual Filter Cost
+- 53 - 158
^ Alen BreatheSmart FIT50 replacement filters estimated cost
Alen BreatheSmart FIT50 is priced between the 3 BreatheSmart air purifiers which is reasonable but not cheap in our book. Please note the price does not includes the upgraded filters and front cover panel addons. Annual filter replacement cost is between normal to cost-efficient at 6 - 18 months. Based on our test, the 18 months filter lifespan is easily achievable on normal use. Check out the entire filter price-list above via the table above or visit Amazon website.

The challengers

Alen BreatheSmart Classic

The first and standard version with the best in-class airflow performance and coverage but you will have to do with a higher price tag and bulkier framework.

Alen BreatheSmart FLEX

The smallest and more cost-effective version that have to compromise on purifying coverage, airflow performance and SmartSensors.

In conclusion......

  • Multiple color option/ wood trim design front panel cover.
  • Excellent purifying coverage/ airflow delivery although its less effective against standard BreatheSmart.
  • Up to 3 specialist filter upgrades (HEPA-FreshPlus , HEPA-Silver, HEPA-OdorCell).
  • Ionizer is optional that can be disable via the button.
  • Longer lasting filters (up to 18 months) on regular use.
  • Smart Filter replacement indicator that calculates filter lifespan based on usage/ fanspeed/ environment.
  • 4 fanspeed with Auto mode, SmartSensor, pre-set timer.
  • Child friendly machine with safe vent guard and locking control panel.
  • Lifetime Limited Warranty.
  • HEPA-Pure filter lacks odor filtration and optional filter with deodorization requires top up.
  • No dedicated odor carbon filter to support the HEPA filter lifespan.
  • Noise is clearly audible at higher speed although still bearable.

More on Alen BreatheSmart FIT50 customizable

Alen BreatheSmart FIT50 customizable is totally designed and constructed on overall look, reliability and durability for owner that needs sheer best. Starting at the air purifier design, combining the changeable front panel selections with minimalist elements, Alen BreatheSmart FIT50 customizable exhibit a modern yet plainness visual appeal. Fitting on controls are perfectly connected that would be long lasting for responsive and sensitive adjustment. Alen BreatheSmart FIT50 customizable is well fitted that you could anticipate only minimal notable gaps on its structure. In short, top-notch build quality that would endure some harsh usage.

Alen BreatheSmart FIT50 customizable airflow performance and purifying coverage

The primary attribute of Alen BreatheSmart FIT50 customizable, at 900 sq. ft. it is more than enough for purifying coverage. The all-round airflow output is also excellent. That is to say, Alen BreatheSmart FIT50 customizable is appropriate for studio apartment, kitchen, dining area, master bedroom or office. Continuing with the purifying effectiveness, Alen BreatheSmart FIT50 customizable fanspeed at full-blast would have no issue clear away airborne particles that is lingering the household. Air-borne pollutants example dust, mold, pollen, mildew and pet dander that is floating around would now be completely absorbed and contained by the air purifier.

Maintenance and care

Arguably Alen BreatheSmart FIT50 customizable is one of the most convenient air purifier to maintain in the segment that user truly fancied for its simple and plainness design. As routine upkeeping required to retain the air purifier condition, Alen BreatheSmart FIT50 customizable is reasonably simple to maintain by utilizing a damp cloth to wipe out any kind of stain and dust. On air-ventilation and filters, use a brush to gently sweep and brush the air-vent intake and output to impede dust from disrupting the air flow circulation.

Noise level and power consumption

Alen BreatheSmart FIT50 customizable well sealed framework and steady air flow generates average noise level at most fanspeed therefore ideal to use day or night. Subtle noise at minimum fanspeed while audible noise at maximum velocity. Compare with other alike household appliances, you would have no issue with Alen BreatheSmart FIT50 customizable produced noise level. Secondly, Alen BreatheSmart FIT50 customizable would not have substantial impact on your electricity bills unless the air purifier is working 24×7. Alen BreatheSmart FIT50 customizable power usage compare with other household appliances is slightly lower.

Final thoughts on Alen BreatheSmart FIT50 customizable

Overall, Alen BreatheSmart FIT50 customizable is certainly the ideal choice if your basic requirement consists of purifying effectiveness, reliability and durability. Compare with the advantages/disadvantages, the positive aspects you would get from the air purifier stands out more than the shortcomings. As reflected above, Alen BreatheSmart FIT50 customizable is our top pick between the 3 BreatheSmart models.

Build quality

         READ MORE         

Frequently Asked Questions (FAQ)FAQ

Can I use Alen BreatheSmart FIT50 filters on BreatheSmart Classic/ Flex?

FF50 filters can only be used in Alen BreatheSmart FIT50 and are not interchangeable with BreatheSmart Classic/ Flex.

What is WhisperMax technology?

WhisperMax technology is a noise suppressor that help keeps the noise level down through precise tuning and aerodynamics. Only available in selected models.

Can Alen BreatheSmart FIT50 front panel be painted?

Alen BreatheSmart FIT50 (BreatheSmart series) front primer panel can be fully painted so you can have your own uniquely designed air purifier.

What is the differences between Alen BreatheSmart Classic, BreatheSmart Fit50 and BreatheSmart Flex?

  • Alen BreatheSmart is the highest range in its stable that has the best purifying coverage, CADR/ airflow follow by Alen BreatheSmart Fit50 and BreatheSmart Flex.
  • Alen BreatheSmart Fit50 surprisingly has the lowest noise level although it's hard to tell in real life situation.
  • Both Alen BreatheSmart and BreatheSmart Fit50 comes with WhisperMax technology and SmartSensor + Auto mode while BreatheSmart Flex have to do without.
  • Alen BreatheSmart Fit50 and BreatheSmart Flex also comes with Advanced Smart Filter Life that calculates filter lifespan based on usage/ environment while BreatheSmart Flex have to do with basic Filter Life that based on runtime.
For more details please refer to the comparison table below.
<< Swipe > on products to view more
Alen BreatheSmartAlen BreatheSmart Fit50Alen BreatheSmart Flex
Coverage1100 sq. ft. (102 m2)900 sq. ft. (84 m2)700 sq. ft. (65 m2)
CADR300 cfm (510 m3/h)220 cfm (374 m3/h)245 cfm (416 m3/h)
Airflow150-286 cfm (255-486 m3/h)110-231 cfm (187-392 m3/h)53-187 cfm (90-318 m3/h)
WhisperMax Technology
SmartSensor + Auto mode
Filter replacement indicatorSmart Filter LightSmart Filter LightFilter Light
Weight21 lb (9.5 kg)16 lb (7.3 kg)15 lb (6.8 kg)

How to tell apart which BreatheSmart do I owned?

Check the top black control panel, if you see only BreatheSmart logo in the panel, it’s the BreatheSmart Classic model. BreatheSmart Fit50 model would have its logo on the far right while BreatheSmart Flex model would have the word “Flex” next to BreatheSmart logo.

Alen BreatheSmart FIT50 indicator LED light is very bright. Is there a way to turn it off?

You can turn off indicator light by clicking on the power button when Alen BreatheSmart FIT50 is in operation.

How do I reset Alen BreatheSmart FIT50 filter indicator after I have replaced it with a new filter?

Reset the filter replacement indicator by holding the filter button down for about 5 seconds. You should hear a gentle beep sound indicating the filter indicator has been reset.

What does Alen BreatheSmart FIT50 Lifetime Limited Warranty covered?

The Lifetime Limited Warranty cover your Alen BreatheSmart FIT50 air purifier from defects in materials or workmanship as long as you own it.
******** SIDE NOTE ********
  • Warranty will only be applicable if you are the unit original purchaser and in the US or Mexico.
  • Alen BreatheSmart FIT50 air purifier must be connected to a proper power supply (see voltage label). Using voltage converter, transformer or plug adapter will effectively void the warranty.
  • Shows no evidence of tampering, accidental damage, mishandling, modification or repair by anyone other than authorized Alen service personnel.
  • Replace the filter as stipulated timeframe in the manual to avoid excessive stress on the motor.
  • Remember to keep your proof of purchase and register your Alen BreatheSmart FIT50 air purifier at or call 1-800-630-2396 for warranty validation.

What is the differences between each Alen HEPA filters and which Alen BreatheSmart FIT50 replacement filter should I get?

All Alen BreatheSmart FIT50 filters are great at addressing dust, allergies and asthma. For a specific concern, choose:

  • HEPA-Pure - standard filter for household allergy relief.
  • HEPA-Silver - advanced all-around solution filter that is best against mold, germs & bacteria.
  • HEPA-Fresh/ HEPA-FreshPlus - chemical filter that is best against strong chemicals, smoke and VOCs.
  • HEPA-OdorCell - odor neutralizer that is best in removing diaper smell and pet odor.

What is the difference between Smart Filter Light and standard Filter Light?

Smart Filter Light calculates the filter lifespan based on actual usage and surrounding environment while standard Filter Light is purely based on runtime. Smart Filter Light is available in Alen BreatheSmart Classic and Fit50.

What is the differences between HEPA-Silver and HEPA-FreshPlus as both comes with activated carbon?

HEPA-Silver comes with 1.5 lbs activated carbon and is ideal against mold, germs & bacteria while HEPA-FreshPlus comes with higher 3 lbs activated carbon that is best against strong chemicals, smoke or VOCs.

How many filters Alen BreatheSmart FIT50 used?

Alen BreatheSmart FIT50 uses just one filter that is easy to replace if you discounted the washable pre-filter. You do have the option to choose from 1 of 4 customized filters that contains both HEPA and carbon filter materials.

Which is the best filter for paint, chemicals or formaldehyde fumes??

For chemicals such as VOCs or formaldehyde, choose either HEPA-Fresh that comes with 1.5 lbs activated carbon or the stronger HEPA-Fresh/ HEPA-FreshPlus that comes with 3 lbs activated carbon.

Which is the best filter to get rid of the smoke from wildfire/ wood burning?

For Alen BreatheSmart FIT50, choose HEPA-Fresh or HEPA-FreshPlus (depends on model) would be the best option as it comprises 3 pounds of carbon pellets that is effective in absorbing chemicals component released from wood smoke.

Does Alen BreatheSmart FIT50 get rid of cigarette smoke?

Yes it does but you would have to upgrade the filter to either HEPA-Fresh or HEPA-FreshPlus (depends on model) that comes with thick layer of Activated Carbon.
******** SIDE NOTE ********
  • Alen BreatheSmart FIT50 will not remove residual smoke/ odors from wall paint, furniture, carpet and drapes.
  • Make sure Alen BreatheSmart FIT50 is used in the recommended room size or intended source.
  • Run on higher fan speed for maximum efficiency.
  • Avoid smoker from smoking indoor.

Which filter would work best to get rid of musty mold in a basement?

For Alen BreatheSmart FIT50, opt for the HEPA Silver filter upgrade as it is designed to tackle mold, germ and bacteria in a basement. A dehumidifier would also be a great help in curbing down microorganism growth.

Which filter do I need to get rid of pet odors and litter box odors?

Yes it can but you have to opt for the HEPA-OdorCell filter upgrade that specialize in eliminating diaper and pet odors.

Which filter in Alen BreatheSmart FIT50 is best for just eliminating cooking smells in an open kitchen?

You could either opt for HEPA Silver Filter, HEPA FreshPlus or even HEPA-OdorCell filter to eliminate light cooking odors.

Is it possible to use more than 1 customizable filter at the same time?

You can only use one filter at a time in Alen BreatheSmart FIT50. Please select the right filter that is best suited to your environment.

Where is Alen BreatheSmart FIT50 air purifier made from?

Alen BreatheSmart FIT50 air purifier is made in China and developed in the United States.

How do I reset Alen BreatheSmart FIT50 filter indicator after I have replaced it with a new filter?

You can reset the filter replacement indicator by holding the button down for about 5 seconds.

Does Alen BreatheSmart FIT50 comes in power supply 220V as the current voltage is too low for my country.

At the moment Alen BreatheSmart FIT50 only comes with 120V only. We do not recommend using a transformer or step-up converter to alter the voltage output as it would damage the air purifier. Also please keep in mind that Alen BreatheSmart FIT50 warranty would be voided if is used other than country of purchase.

What is the smallest micron particles Alen BreatheSmart FIT50 can capture?

Alen BreatheSmart FIT50 HEPA-filter can capture micron particles including bacteria and viruses as small as 0.3 microns.

Can you turn off the ionizer feature in Alen BreatheSmart FIT50?

Yes Alen BreatheSmart FIT50's Ionizer can be easily turn on or off via a click of a button.

Alen BreatheSmart FIT50 Troubleshooting

Safety Tips


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