Pleated Furnace Filter, Ultra Allergen Reduction, 3-Month, Purple, 14x25x1-In. Category_Chain & Wire attach to any steel surface:

attach to any steel surface: doors

flip stick

Can be charged hundreds of times and will hold charge up to 6 months in storage

many home office areas that have gaps

Activated carbon-impregnated cellulose construction

Pleated Furnace Filter, Ultra Allergen Reduction, 3-Month, Purple, 14x25x1-In. Category_Chain & Wire attach to any steel surface:14" x 25" x 1", purple, ultra allergen filtrete filter, 90% effective at capturing large allergens like mold spores & pet dander, captures microscopic allergens like dust, smoke & smog, captures bacteria & particles that can carry viruses, meets the guidelines of the American lung association health house program. Mpr rating 1500, filter lasts for 90 days, color purple.