Keep your air clean and fresh with the Filtrete 14x24x1 Pleated Air Filters. These filters are designed to capture allergens, dust, odors, candle soot, dust mites, pet dander, bacteria, and mold, making them ideal for use in your air conditioner or furnace. The filters are made of synthetic media and feature a pleated design that increases the surface area and improves the efficiency of your HVAC system. Each pack contains six filters, and each filter is designed to last for three months. The filters are made of paper and galvanized steel, and they are resistant to dust, moisture, and abrasion. With a MERV rating of 5, these filters provide a high level of filtration without sacrificing efficiency. Make sure to change the filters regularly to keep your air clean and fresh. MAKE YOUR HOME YOUR SANCTUARY: 6-pack of 3-month pleated Filtrete 14x24x1 MPR 300 AC Furnace Air Filter helps capture unwanted particles from your household air to contribute to a cleaner, fresher home environment DIFFERENT FROM NOMINAL SIZE: Slightly different from the nominal size, this air filter?s exact dimensions are 13.81 x 23.81 x 0.81 EXCLUSIVE TECHNOLOGY: Designed with exclusive Filtrete 3-in-1 technology to pull in and trap unwanted particles, allowing cleaner air to flow through COUNTLESS PARTICLES: With a 300 MPR and MERV 5 rating, your Filtrete Filter will help capture many particles from the air passing through it VERSATILE USES: Works for changing the air filters in your furnace, air conditioner/heating system or HVAC system CHANGE YOUR FILTER OFTEN: For optimal performance, make sure to change your filter at least once every 90 days