3M Filtrete 18x18x1 Air Filter MERV 11, 4-Pack

The 3M Filtrete 18x18x1 Air Filter, MERV 11, is designed to help capture common airborne particles such as allergens and pet dander. Suitable for both AC units and furnaces, this 4-pack provides up to 3 months of filtration per filter, supporting reliable airflow and cleaner indoor air quality. The filter’s dimensions make it an excellent fit for home HVAC systems where maintaining air purity is a priority. Ideal for households with pets or allergy sensitivities, it promotes a healthier environment for all residents.