Alen T500 Tower HEPA Air Purifier Review In 2022
Alen T500 Specification
Product | Alen T500 |
Dimension | 10 x 22 x 6 in (25.4 x 55.9 x 15.2 cm) |
Weight | 9 lb (4.1 kg) |
Fanspeed | 3 |
Coverage (up to) | 500 sq. ft. (46 m2) |
Airflow speed | 48 - 130 cfm (82 - 221 m3/h) |
Dust free (CADR) | 159 cfm (270 m3/h) |
Pollen free (CADR) | 159 cfm (270 m3/h) |
Smoke free (CADR) | 159 cfm (270 m3/h) |
Humidifying(H) speed | |
Filtration | 3-stage |
Pre-Filter - Lifespan - Replacement cost ($) | Pre-filter Permanent |
HEPA filter - Lifespan - Replacement cost ($) | HEPA-Pure Filter TF60 6 - 12 months +- 44 |
Carbon filter - Lifespan - Replacement cost ($) | - |
Ionizer/ Technologies | Ionizer |
UV-light/ PCO | - |
Other filter | - |
All-in-one filter - Lifespan - Replacement cost ($) | - |
Optional/ Addon | HEPA-Silver Filter TF60-SILVER 6 - 12 months+- $59 HEPA-OdorCell Filter TF60-MP 6 - 12 months+- $89 HEPA-Fresh Filter TF60-CARBON 6 - 12 months+- $49 |
Noise level | 42 - 56 dB |
Power usage level | 30 - 53 W |
Timer/ Scheduler | 12 hour timer |
Sensors | SmartSensor |
Auto mode | |
Air qualityAQ indicator | |
Filter change indicator | |
More color options | |
Wi-Fi/ BTBluetooth | |
ENERGY STAR | |
Remote control | |
Child lock | |
Warranty | Lifetime Limited Warranty |
Email/ Phone support |
Key Features
- 3-stage filtration with 3 speed and built-in ionizer
- Washable pre-filter
- HEPA-Pure filter with optional filter upgrades
- Changeable panel
- Up to 12 hour programmable timer
- Auto-off safety feature when the front cover is removed
- Easy back cover filter change
- Alen Lifetime limited warranty (registered and active filter subscription)
- [Optional] filters - HEPA-Pure filter, HEPA-Fresh filter, HEPA-OdorCell filter
Design And Usability
Currently, the smallest tower air purifier in Alen’s lineup, Alen T500 remains true to its conventional small tower size air purifier at 10 x 22 x 6 in and just under 9 pounds in weight. Finding a place to fit in the air purifier is a straightforward task as you could use it as a desktop air purifier, bedside, or even bring it along for travel/ staycation. On to usability and controls, there is a dated non-color top digital display. It will show basic information such as fan speed, filter indicator, timer. Controls are easy to use with a dedicated on/ off button for the Ionizer. sadly there is no air quality status in the machine due to the lack of sensors. Auto mode is not present either for the same reason. Other specifications in this 3-stage air purifier including Auto-off safety features, Smart Filter light indicator, UL listed, ENERGY STAR rated, ozone-safe, and Lifetime limited warranty (subscription needed).
Airflow, Coverage, And CADR
Recommended Read
Filters And Performance
Alen T500 has a familiar 3-stage filtration setup that most user would be acquainted with. The washable pre-filter traps large airborne particles like dust, hair and protect the HEPA filter from over-stressing with unnecessary pollutants. Stage 2 HEPA-Pure filter would concentrate on smaller, non-odor size particles that are not captured by pre-filter. The HEPA filter can remove 99.97% of microscopic allergens as small as 0.3 microns. For smoke, chemical, and odor related particles, upgrade the filter to HEPA-Fresh or HEPA-OdorCell filter. For mold and germs related allergens, upgrade to HEPA-Silver instead. Finally, the last-stage Ionizer would reduce the number of airborne particles and allergens floating in the air by diffusing negative ions.Noise And Energy Usage
Noise Type | Decibels |
---|---|
Alen T500 | 42 - 56 dB |
Breathing | 10 dB |
Rustling leaves | 20 dB |
Whispering/ Quiet library | 30 dB |
Light rainfall | 40-50 dB |
Conversation | 50-60 dB |
Vacuum cleaner/ Hair dryer/ Washing machine | 65-80 dB |
City traffic | 80-90 dB |
Pricing And Maintainence Cost
^ Replacement filters/ estimated cost
Alen T500 VS The Challengers

Honeywell AirGenius 5 HFD320
A permanent filter air purifier that is easy to use with virtually zero maintenance. Filtration strength and depth are not on par with the T500 standard.Pros
- Comprehensive purifying coverage for a tower air purifier.
- Easy to bring around thanks to the compact size and back handle.
- Upgradable HEPA filters depending on your individual needs.
- Covered by Alen lifetime warranty.
- Ionizer function can be turned off.
- Up to maximum of 12 hour timer.
- Relatively subtle noise level even at the highest setting.
Cons
- No stand-alone deodorization filter.
- An optional filters purchase (HEPA-OdorCell) is required to deal with odors.
- Lacks air quality sensors and Auto mode especially at this price point.