Kleenex Allergen Air Filters Merv 8 (4-Pack) help keep your home air clean capturing hard to see microparticles including lint, household dust, dust mite debris, smog, and pollen. You can't control the air outside, but we make it easy to clean the air you breathe inside. MERV 8 rated air filter media is electrostatically charged to trap the smallest particles. Trap the bad, breathe the good. Protect your home and family.