CLEANER INDOOR AIR: 3-pack of MERV 8 Accumulair® Gold air filters. Designed to help trap unwanted particles in your indoor air and reduce odors. HELPS TRAP AIRBORNE CONTAMINANTS: The Accumulair® Gold Air Filter is rated as a MERV 8, meaning it can trap up to 75% of large airborne particles. This filter effectively reduces airborne allergens, including pollen, pet dander, dust mite debris, dust, and lint. LASTS UP TO 90 DAYS: To maintain optimal filtration performance, check your home air filter every 60-90 days. Regularly replacing air filters helps to keep your HVAC unit running efficiently and can help reduce energy usage. PROUDLY MADE IN THE USA: Each air filter is manufactured and assembled here in the USA.