Best Alen Filters In September 2026

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Here you have our curated list of Best Alen Filters. Each of them comes with different price, style, and design, so you have plenty of options to choose from. Keep reading for our top products review!

To help you in your search, we have completed this list of the Best Alen Filters.

Top Rated Best Alen Filters Of 2026

Rank	Product Name	Score
1	Alen BF35-Silver-Carbon Air Purifier Replacement Filter, 1-Pack, Hepa-silver-carbon Buy Now	9.7 Buy Now
2	Alen Replacement Air Filter for T500, True HEPA Basic Filter for Allergies, Pollen Buy Now	9.5 Buy Now
3	Alen Buy Now	9.1 Buy Now
4	Alen Filter Replacement for BreatheSmart 75i: Antimicrobial True HEPA Air Filter for Dust Buy Now	8.8 Buy Now
5	Alen FF50-Silver-Carbon Replacement Air Filter, Allergies, Dust + Mold, Bacteria Buy Now	8.6 Buy Now
6	Alen Buy Now	8.3 Buy Now
7	Alen Replacement Air Filter for BreatheSmart 45i or Flex, True HEPA Basic Filter Buy Now	8.1 Buy Now
8	LifeSupplyUSA Replacement HEPA Filter Compatible with Alen TF50-Carbon HEPA-Fresh Paralda Air Purifier Buy Now	7.8 Buy Now
9	LifeSupplyUSA HEPA Filter Compatible with Alen BF15A HEPA-Pure Replacement Filter for A350 Air Buy Now	7.5 Buy Now
10	Alen Replacement Air Filter for BreatheSmart Fit50, True HEPA VOC Filter for VOC's Buy Now	7.2 Buy Now

1. Alen BF35-Silver-Carbon Air Purifier Replacement Filter, 1-Pack, Hepa-silver-carbon

• Replacement air filter - for breathesmart classic air purifiers only. if you own any other breathesmart air purifier, find your model below to order the correct air filter.
• True hepa filter - multipurpose air filter made with an antimicrobial compound that inhibits the growth of bacteria and mold spores. built with a lightweight layer of activated carbon, true hepa-silver filter can also trap light chemical and smoke odors like those from cooking.
• Find your model - look on the top of the panel of the unit to find the name on the alen air purifier breathesmart classic is the only one that just says breathesmart.
• Long filter life - recommended to change filter once every 10-12 months, or dependent on usage. will not fit breathesmart fit50 or breathesmart flex
• What it captures - mold, bacteria, light odors, seasonal allergies, pollen, dust, dander & pet fur. true hepa filter to capture 99.97% of airborne particles down to 0.3 microns.

2. Alen Replacement Air Filter for T500, True HEPA Basic Filter for Allergies, Pollen

• True hepa filter - basic air filter offers a true hepa filter to capture 99.97% of airborne particles down to 0.3 microns.
• What it captures - seasonal allergies, pollen, dust, dander & pet fur.
• Replacement air filter - for alen t500 tower air purifier.
• Long filter life - recommended to change filter once every 6-9 months, or dependent on usage.
• Whats in the box? - true hepa-pure air filter with pre-filters for large airborne debris.

3. Alen

• Removes dust, pet dander, mold spores and pollen from the air
• Creates an allergy and asthma friendly environment
• Filter life is between 6 and 12 months depending on use
• Helps maintain a clean household by reducing dust
• Easy to replace

4. Alen Filter Replacement for BreatheSmart 75i: Antimicrobial True HEPA Air Filter for Dust

• True hepa air filter for breathesmart 75i solution for smoke odors, chemical fumes or vocs in addition to dust, mold, dander, and seasonal allergies.
• Secure air flow plastic framed with gaskets to eliminate bypass, which means the air flows through the air filter without any leakage around the edges and color coding by filter type for easy identification.
• Agent applied to the filter stops growth of harmful bacteria and microbes.
• Removable and easy to clean pre-filter screen that extends the lifespan of the filter.
• Allergy and asthma friendly environment by removing dust, dander, mold spores, vocs, smoke, kitchen odors and pollen from the air.

5. Alen FF50-Silver-Carbon Replacement Air Filter, Allergies, Dust + Mold, Bacteria

• True hepa filter - multipurpose air filter made with an antimicrobial compound that inhibits the growth of bacteria and mold spores. built with a lightweight layer of activated carbon, true hepa-silver filter can also trap light chemical and smoke odors like those from cooking.
• What it captures - mold, bacteria, light odors, seasonal allergies, pollen, dust, dander & pet fur. true hepa filter to capture 99.97% of airborne particles down to 0.3 microns.
• Long filter life - recommended to change filter once every 9-12 months, or dependent on usage.
• Find your model - look on the top of the panel of the unit to find the name on the alen air purifier to insure correct fit for the air filter and model type.
• Replacement air filter - for breathesmart fit50 air purifiers only. if you own any other breathesmart air purifier, find your model below to order the correct air filter.

6. Alen

• Eligible for alen's convenient autoship filter plan with free lifetime shipping
• Silver-ion technology protects the filter against growth of harmful bacteria and microbes
• Creates an allergy and asthma friendly environment by removing dust, pet dander, mold spores and pollen from the air
• Provides pure, breathable air by capturing vocs (volatile organic compounds) from cleaning products, personal care items and other household materials
• Pre-filter layer extends the life of the filter

7. Alen Replacement Air Filter for BreatheSmart 45i or Flex, True HEPA Basic Filter

• Recommended for: dust, dander, allergens, fur, household odors, all while preventing the growth of mold and bacteria. the b4-pure filter includes an compound that helps kill airborne germs, bacteria, fungi, and viruses including the flu.
• True hepa: includes a high capacity hepa layer to capture 99. 97% of airborne particles down to 0. 3 microns. true hepa filters last 3-5 months longer than standard filters.
• Alen brand - extra long filter life, change once every 9-12 months. please note: knock-off filters are not recommended in alen units and can cause damage.
• Replacement air filter - for breathesmart flex & 45i air purifiers only. find your model number on the top panel below the power button.
• Part number: b4-pure (old part number fl40-pure)

8. LifeSupplyUSA Replacement HEPA Filter Compatible with Alen TF50-Carbon HEPA-Fresh Paralda Air

• Compatible with alen paralda air purifier.
• Replacement hepa filter compatible with alen tf50-carbon hepa-fresh paralda air purifier.
• Recommended to replace filter once a year, depending on use of your unit.
• Brand new individually sealed by lifesupplyusa.

9. LifeSupplyUSA HEPA Filter Compatible with Alen BF15A HEPA-Pure Replacement Filter for A350 Air

• Replacement filter compatible with alen air a350 air purifier
• By lifesupplyusa
• Hepa traps 99.97% of household airborne particles. absolutely essential for allergy sufferers
• Compare to part # bf15a
• Replace at least every 6 months with normal use

10. Alen Replacement Air Filter for BreatheSmart Fit50, True HEPA VOC Filter for VOC's

• What it captures - chemicals (vocs), cooking odors, smoke, seasonal allergies, pollen, dust, dander & pet fur. true hepa filter to capture 99. 97% of airborne particles down to 0. 3 microns.
• Find your model - look on the top of the panel of the unit to find the name on the alen air purifier to insure correct fit for the air filter and model type.
• Replacement air filter - for breathe smart fit50 air purifiers only. if you own any other breathe smart air purifier, find your model below to order the correct air filter.
• True hepa filter voc air filter contains an ultra-absorbent activated carbon layer that absorbs harmful airborne particles including household chemicals and cooking odors, and smoke. true hepa-fresh plus traps, cleans, and absorbs particles and leaves you with a fresh, clean air.
• Long filter life - recommended to change filter once every 9-12 months, or dependent on usage.