Merv Furnace Filters

When selecting the right filter for your application higher is not always better.

Merv furnace filters. Mpr microparticle rating is a rating system that includes microscopic particles not visible to the naked eye. Owen said filters in this range like this merv 7 nordic pure were created as an improvement on the basic merv 1 to 4 filters and designed to also filter out midsize particles 3. At 3m we believe merv only tells part of the story. Filters with higher merv ratings need to be changed more frequently at least every three months to avoid restricted airflow that can cause your system to work inefficiently.

Merv ratings above 16 are typically used in specialized commercial settings where air filtration is critical such as hospitals. Product title 12x24x1 merv 8 pleated ac furnace air filters. In general filters with higher merv ratings are more effective and improve air quality but are also more expensive. Plus higher doesn t always mean better for homeowners.

What merv should i use in my home furnace. When you want the best possible air filter for your home microparticles matter most they make up 99 of the particles that are in the air. Merv 5 to 7. Merv 17 through merv 20 filters are typically used in surgical operating rooms clean rooms and other contexts that require absolute cleanliness.

Using an air filter with a merv rating higher than what your furnace or air.