Polluted air first passes through Alen's replaceable Pre-Filter to capture large particles, extending the life of the filter. In the second layer, air
![Alen A350 HEPA-Pure Replacement Filter](https://alen.com/cdn/shop/products/A350_AdditionalVariant_Color-White_image-filter-backangle_073d1cdc-124d-412e-80ca-2a7183c29eaa_1440x.jpg?v=1622042980)
Alen A350 HEPA-Fresh Replacement Filter: BF25A-Fresh
![Alen A350 HEPA-Pure Replacement Filter](https://housefresh.com/wp-content/uploads/2022/02/AlenA350_5-1024x643.jpg)
Alen A350 - Updated 2020
![Alen A350 HEPA-Pure Replacement Filter](https://cdn.thewirecutter.com/wp-content/media/2023/06/airpurifiers-2048px-2616.jpg?auto=webp&quality=75&crop=1.91:1&width=1200)
The 7 Best Air Purifiers of 2023
![Alen A350 HEPA-Pure Replacement Filter](https://static-data2.manualslib.com/product-images/187/18640/1863903/raw.jpg)
How To Replace The Filter - Alen A350 User Manual [Page 7]
Polluted air first passes through Alen's replaceable Pre-Filter to capture large particles, extending the life of the filter. In the second layer, air
![Alen A350 HEPA-Pure Replacement Filter](https://alen.com/cdn/shop/products/A350_AdditionalVariant_Color-White_image-filter-frontpreangletop_56ab1bf9-5550-4ae1-971e-40a25e6865b3_1440x.jpg?v=1622042975)
Alen A350 HEPA-Pure Replacement Filter: BF15A-Pure
![Alen A350 HEPA-Pure Replacement Filter](https://housefresh.com/wp-content/uploads/2022/02/AlenA350_1-1024x668.jpg)
Alen A350 - Updated 2020
![Alen A350 HEPA-Pure Replacement Filter](https://durabasics.com/cdn/shop/files/Alen75iBreatheSmartInfographicMainImage_900x.jpg?v=1697056741)
Products - Durabasics
![Alen A350 HEPA-Pure Replacement Filter](https://www.vacuumwars.com/wp-content/uploads/2023/06/Dyson-Pure-Hot-plus-Cool-HP04-vs-Alen-BreatheSmart-75i-1024x538.jpg)
Dyson Pure Hot+Cool HP04 vs Alen BreatheSmart 75i
Alen BreatheSmart 75i large room air purifier offers advanced air purification technology is designed with ingenuity and available with a True HEPA H13 air filter that captures 99.99% of dust allergens aerosolized viruses chemical and pollutant particles down to 0.1 microns. Essential for purifying the air in a large living space the BreatheSmart 75i cleans up to 1300 square feet two times an hour! Both powerful and quiet as it has been finely tuned to operate at whisper-quiet levels.
![Alen A350 HEPA-Pure Replacement Filter](https://acepurifiers.com/cdn/shop/products/alen-air-purifiers-37139578257635_700x700.jpg?v=1649536095)
Alen BreatheSmart 75i True HEPA Air Purifier Pure / White
![Alen A350 HEPA-Pure Replacement Filter](https://ae01.alicdn.com/kf/Sa7dc8488cea540ac98e6906f3a21cdd3T/HEPA-Activated-Carbon-Air-Filter-Replacement-Set-Compatible-with-Alen-Air-Purifier-A350-A375-Compared-to.jpg)
HEPA Activated Carbon Air Filter Replacement Set Compatible with Alen Air Purifier A350 A375. Compared to Part BF25A 2 Packs - AliExpress
![Alen A350 HEPA-Pure Replacement Filter](https://images.thdstatic.com/productImages/7e26bf19-d82e-4f18-8020-02111780375d/svn/browns-tans-alen-personal-air-purifiers-75i-pure-oak-64_600.jpg)
Alen BreatheSmart 75i Air Purifier with Pure, True HEPA Filter for Allergens, Dust, Mold, and Germs - 1,300 SqFt 75i-Pure-Oak - The Home Depot
Harmful pollutants and irritants in your home's air can disrupt your quality of life. Keep your home fresh with replacement HEPA filters and rid your air of dust smoke pet dander pollen mold and more. Does just the thought of springtime make you sneeze. Arm yourself with HEPA and battle pollen ragweed and grass allergies to help prevent seasonal allergies. A HEPA filter can reduce the amount of pet hair and dander in your air so you can breathe easy around your pets.
![Alen A350 HEPA-Pure Replacement Filter](https://lifesupplyusa.com/cdn/shop/products/hepa_filter_fits_alen_bf15a_hepa-pure_replacement_filter_for_a350_air_purifier_1_1_800x.jpg?v=1649617252)
LifeSupplyUSA 10 Pack HEPA Filter Fits Alen BF15A HEPA-Pure Replacement Filter for A350 Air Purifier
Harmful pollutants and irritants in your home's air can disrupt your quality of life. Keep your home fresh with replacement HEPA filters and rid your air of dust, smoke, pet dander, pollen, mold and more. Does just the thought of springtime make you sneeze. Arm yourself with HEPA and battle pollen, ragweed and grass allergies to help prevent seasonal allergies. A HEPA filter can reduce the amount of pet hair and dander in your air, so you can breathe easy around your pets.
![Alen A350 HEPA-Pure Replacement Filter](http://lifesupplyusa.com/cdn/shop/products/ER175_3.jpg?v=1649619292)
LifeSupplyUSA HEPA Filter Fits Alen BF15A HEPA-Pure Replacement Filter for A350 Air Purifier