Blueair 400 Series Particle FilterThe Blueair 400 series air purifiers feature patented HEPASilent filtration technology to remove household allergens and irritants. HEPASilent filters work together with electrostatic filtration to eliminate 99.97% of all particles 0.1 microns or larger. Replace your HEPASilent 400 filter every six months to maximize performance. 1 Replacement Blueair 400 series HEPASilent particle filter F400PA
For Blueair models: 402, 403, 450E
- When our son moved back to the area we were concerned about his allergy to cat dander now that he would be visiting more frequently. We were very satisfied with the filters for dust allergies but the cats posed a different problem. Our worries were unnecessary. The Blueair 400 filters did a fantastic job - even when the cats decided to jump in bed with our son. We highly recommend these filters and the Blue Air purifier.
- returning customer
- I have used the Blueair purifier and filters for 6 years now and have added two more to the original....all of my filter products come from Achoo....ah, sweet, clean air and relief...
- Blueair 400 series filter
- We have two of these machines in our offices and they work great. The filters are changed every 6 months. I suffered with severe asthma due to building conditions and this filter has made a major difference in my breathing in the office. Very quiet too. Worth every penny.
- Excellent Filter
- Use this filter for my Blue Air Purifier in our bedroom to keep air fresh and clean free of allergens.
- great find
- I was really excited to find this website with all of the great allergy products they have available. I was able to replace the air filter for my air purifier. Ordering was quick, easy, and affordable. It was back up and running in no time. I'll be shopping here again and again.
- 402 filters
- As an emphysema sufferer, I have found th 402 filters do a good job of removing dust, etc. from my house.
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Hope that helps!