Keep the air in your home clean and fresh with the 3M Filtrete 300 MPR Basic Dust Reduction Air Filters. This pack of 6 filters is designed to fit perfectly into your air conditioner or furnace to trap dust and other particles. The pleated design and electrostatic filtration technology effectively capture contaminants, ensuring that the air you breathe is healthy and free of allergens. With a MERV rating of 5, these filters are guaranteed to last up to 3 months. The filters measure 14x30x1 inches and are compatible with a range of heating, cooling, and air systems.