The Filtrete Premium Allergen, Bacteria & Virus Filter has the highest airflow among MERV 13 filters (2) while capturing microscopic particles like bacteria and particles that can carry viruses and large particles like mold spores and pollen. Filtrete MPR 1900 Air Filters, made by 3M, helps capture unwanted particles from household air to contribute to a cleaner, fresher home environment. Designed with exclusive Filtrete 3-in-1 technology, including a high MPR 1900 and MERV 13 rating, your AC filter will help pull and capture countless microparticles – such as pet dander, smoke, bacteria, and viruses while letting cleaner air flow through. Filtrete Filters also capture large particles, including lint, pollen and household dust. This filter is also certified asthma and allergy-friendly® (1). Use a 3-month pleated 1-inch home HVAC filter in your furnace, air conditioner or HVAC system. For