Furnace Filter Rating System

Merv 17 through merv 20 filters are typically used in surgical operating rooms clean rooms and other contexts that require absolute cleanliness.

Furnace filter rating system.

Fpr ratings are on a scale from 4 through 10. With the correct merv rating and a pleated design this furnace filter improves the efficiency of your hvac system. To determine resistance filters use the merv rating system. The merv filter rating is the domestic and international industry standard rating system established by the american society of heating refrigerating and air conditioning engineers.

If we were looking to buy a new filter today for our hvac heating ventilation and air conditioning system we d aim for a medium efficiency filter with a merv rating in the 8 to 13 range which. It even captures extremely small particles that can negatively affect a person s health. It also factors in the weight gain caused by the filtration process over the filter s lifetime. In short the higher the merv rating is the more resistant the filter is.

Many homes use filters with a merv rating of 1 4 which mostly filter out dust lint and pollen among other larger common particles they do very little to trap small microparticles. Merv stands for minimum efficiency reporting value which is a rating system designed by the american society of heating refrigerating and air conditioning engineers ashrae. The filtrete ultra allergen reduction 1500 mpr filter earns a very good rating for removing smoke dust and pollen from the air with the system running on a high fan speed but is only. The other two systems were created by 3m mpr and the home depot fpr to differentiate their offerings.

Merv filter ratings and efficiency. Merv rating is essential for finding the proper furnace filter for your home. The home depot air filter performance rating system fpr ranks all brands of filters the home depot sells by measuring their ability to capture large and small particles. Merv air filter ratings range from 1 least efficient captureability to 16 very efficient.

The rating indicates the size of particles the air filter is designed to capture.