Refresh your space or tackle a new project with inspiration from Lowe’s. Learn More >

Link to Lowe's Home Improvement Home Page

Prices, Promotions, styles, and availability may vary. Our local stores do not honor online pricing. Prices and availability of products and services are subject to change without notice. Errors will be corrected where discovered, and Lowe's reserves the right to revoke any stated offer and to correct any errors, inaccuracies or omissions including after an order has been submitted.

BlueAir 400 True HEPA Air Purifier Filter

Get Pricing & Availability

It is important to only use genuine Blueair replacement filters to maintain optimal performance and warranty. Filters that are not Blueair genuine will void your units warranty
GENUINE Blueair Replacement Filter is compatible with Blueair Classic 402, Blueair Classic 403, Blueair Classic 410, Blueair Classic 450E, Blueair Classic 455EB, Blueair Classic 405
PARTICLE and ACTIVATED CARBON combine to create the Blueair SmokeStop filter that, with the Classic air purifier, reduces pollen, dust, pet dander, mold spores, bacteria, odor, VOCs, Tobacco smoke and other gaseous pollutants

Best Price. Guaranteed

Find a lower price on an exact item? We'll match it. Some exclusions apply.

FREE Returns

Return it in store or ship it back for free. Eligibility rules apply.

FREE Shipping

Delivery is on us for orders over $45. Some exclusions apply.

The Blueair SmokeStop™ Filter is specifically designed for environments with heavy gaseous pollutants, such as smoke, odors, and harmful volatile organic compounds. Hundreds of active carbon pellets formulated with magnesium dioxide and copper oxide trap gaseous substances and annoying odors. The gradient structure of Blueair filters traps particles of all sizes while maintaining maximum airflow. It resists clogging and won't re-release particles back into the air, even when the filter is heavily loaded. Blueair filter media is ultrasonically bonded to prevent filter fibers and other particles from being added back into your environment. The only thing that comes out of our filters is clean air! In addition, advanced polypropylene filter media removes particle pollutants down to 0.1 micron in size from your indoor air, such as pollen, dust, and pet dander. The Blueair Classic Replacement filter, SmokeStop, keeps cleaning the air on average from 6 months to a year. The environment and fan speed will influence the actual life of the filter.

It is important to only use genuine Blueair replacement filters to maintain optimal performance and warranty. Filters that are not Blueair genuine will void your units warranty
GENUINE Blueair Replacement Filter is compatible with Blueair Classic 402, Blueair Classic 403, Blueair Classic 410, Blueair Classic 450E, Blueair Classic 455EB, Blueair Classic 405
PARTICLE and ACTIVATED CARBON combine to create the Blueair SmokeStop filter that, with the Classic air purifier, reduces pollen, dust, pet dander, mold spores, bacteria, odor, VOCs, Tobacco smoke and other gaseous pollutants
RECOMMENDED to change filter once every 6 months, or dependent on usage. This filter is eco-friendly and can be recycled after it's changed