This SmokeStop Filter upgrades your Blueair 400 Series Air Purifier to include both the high-efficiency particle filtration of the standard particle filter, PLUS gas and odor control for added protection from smoke and other airborne gases, chemicals, and odors.
Blueair HEPASilent 400 Series Air Purifiers: 401, 402, 403, 450E.
Replace every 6 months
Easy Maintenance: When the filter needs to be replaced (twice yearly), just open the side, slide out the old filter and drop the new one in. No screws, hooks or tools and less than one minute of your time are required.
The Blueair SmokeStop Filter is a progressive carbon filter with a honeycomb-type structure that improves airflow and has hundreds of odor and gas absorbing carbon pellets. The filter contains 2.0 lbs of coconut shell activated carbon impregnated with a 70/30 blend of Potassium Hydroxide (KOH) and Potassium Iodide (KI). The carbon eliminates volatile organic compounds (VOC), which are responsible for odors and often found in household paints and cleaning products. The Blueair SmokeStop Filter is recommended for use in rooms where heavy gaseous pollutants such as cigarette and cigar smoke or other VOC's are present.