Kleenex Elite Allergen Air Filters Merv 13 (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. The MERV 13 rated air filter media is electrostatically charged to trap particles, making it easy to deep clean your indoor air. Patented Dual Air Flow Technology. Certified Asthma & Allergy Friendly®. Protect your home and family.