🌟 Elevate Your Air Quality! MERV 15 rating captures 95% of airborne allergens. Perfectly sized at 20 x 25 x 3 1/2 inches. Compatible with various air conditioners and furnaces. Say goodbye to pollen, dust, and pet dander. Recommended replacement once a year for optimal performance. Pet dander reduction Virus filtration MERV 15 rating The Filter-Monster Replacement Cartridge is a high-performance MERV 15 air purifier filter designed to significantly reduce airborne allergens such as pollen, dust, pet dander, and even viruses. With a recommended annual replacement, this filter fits perfectly in any compatible air conditioning or heating system, ensuring you breathe cleaner, fresher air all year round.