Menu
Your subscription payment will be ||price|| Auto-renews, skip or cancel anytime.
At Filter Monster, we have over 25 years of experience helping customers breathe cleaner, healthier air with filtration solutions that combine performance, reliability, and value. Our BA311A-FM1 HEPA filter replacement is compatible with the Blueair Blue Pure 311 Auto air purifier. The HEPA filter material captures up to 99.97 percent of particles as small as 0.3 microns. It is designed to help filter dust, pollen, dust mite matter, and pet dander with the interior carbon mesh filters, smoke and cooking odors. This helps to reduce airborne contaminants and improve indoor air quality and relief from allergy or asthma triggers and helps to provide cleaner air around you. The 360-degree design provides excellent surface area to filter your air. This allows air to be drawn in and filtered for all directions, helping to ensure improved indoor air quality.
Find the filter that fits your equipment and your air quality goals.
Pick the delivery timing that works for you, with the freedom to change or cancel whenever.
Sit back and relax as your new filter shows up to your doorstep!
Sign up for our newsletter and be the first to know about coupons and special promotions.
© 2026, Filter-Monster