Furnace Air Filter Comparison

The higher the number the better the furnace filter is in capturing particles.

Furnace air filter comparison.

Aprilaire 213 merv. The vast majority of disposable furnace filters are rated according to the merv scale minimum efficiency reporting value created by the american society of heating refrigerating and air conditioning engineers. Find the best air filter for your home we test evaluate and compare the latest air filters. Top 15 best furnace filters reviews 2020 1.

The american society of heating refrigerating and air conditioning developed this rating as a way of identifying a filter s ability to trap air pollutants and particles. Furnace filters are replaced by measuring the width by the length. Again there s no direct comparison with the merv rating. 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.

Mpr measures ratings based on sizes 0 3 to 1 microns. The other two systems were created by 3m mpr and the home depot fpr to differentiate their offerings. Fpr 10 is similar in strength to merv 20 since they are both the highest rating value. Compared to the home depot s method of ranking air filters fpr merv has wider range.

Merv has a scale of 1 to 20 with 20 as the best. Fpr ratings are on a scale from 4 through 10. Filtrete mpr 1000 16x20x1 ac furnace filter. However fpr 1 doesn t necessarily equate to merv 1.

The smaller pores in more highly rated air filters create resistance to air flow and if the filter is used in an hvac system that is not designed to handle this resistance it can lower the system. Depth can also be important on some furnaces with most being roughly 1 inch deep. Using an air filter with a merv rating higher than what your furnace or air conditioner manufacturer recommends can actually impair its performance. While fpr s rating system goes from 1 to 10 merv s rating system goes from 1 to 20.

Merv 8 pleated ac furnace air filter. Filtrete mpr 1000 16x20x1 ac furnace filter is also one of the great. If you re getting low airflow check the air filter a clogged filter can cut airflow to a trickle. The best air filters for protecting your hvac and clearing the air of pollen pet dander and smoke from consumer reports tests.

So a filter that measure 20 inches long by 25 inches wide would be replaced by a 20 x 25 filter.