Kleenex Elite Allergen Air Filters Merv 12 (2 Pack) help capture hard to see microparticles including lint, dust, mold spores, smog, pollen, pet dander, smoke, cough/sneeze debris, airborne bacteria, and particles that can carry viruses. Our MERV 12 rated air filter is electrostatically charged to trap particles with patented Dual Air Flow technology. Certified Asthma & Allergy Friendly®. Protect your home and family.