Easy to install. Just remove the used filter from the air purifier and put in the new one. Suggested to replace the filters every 6 months to optimize the efficiency.
Quality meets or exceeds leading national brand's
Works with Bionaire machines: BAP260, BAP815, BAP825, BAP9200, BAP9700, BAP520.
Filter Dimension: 1.2 x 10 x 4.6 inches. 4 True HEPA filters included.
HEPA FILTER: HEPA filters remove up to 99.97 percent of airborne particles as small as 0.3 microns.
QUALITY AIR FILTERS: 4 Premium HEPA filter compatible with Holmes AER1 total air filter HAPF30AT-U4R. Compatible with AER1 ready air purifiers