Filtrete MPR 1900 Air Filter

These filters have a MERV 13 rating, which indicates they are highly effective at capturing fine particles like smoke, bacteria, and virus carriers. This level of filtration is ideal for households looking to significantly improve indoor air quality beyond standard dust removal.

For optimal performance and to maintain your HVAC system's efficiency, you should replace these filters every three months. Depending on your home environment—such as the presence of pets or high dust levels—you may want to check them sooner to ensure they aren't clogged.

Because this is a high-efficiency MERV 13 filter, it is denser than lower-rated options. While it captures more particles, it is important to ensure your HVAC system is compatible with this level of restriction to avoid putting unnecessary strain on your blower motor.

The nominal size is 24 x 24 x 1 inches, but the actual dimensions are 23.81 x 23.81 x 0.78 inches. Always measure your existing filter or the filter slot in your furnace to ensure a proper fit, as even a small gap can allow unfiltered air to bypass the system.

The filter material is treated with an electrostatic charge that acts like a magnet for airborne particles. This allows the filter to attract and trap microscopic allergens and irritants that might otherwise pass through a standard fiberglass filter.