Furnace Air Filter Comparison

Depth can also be important on some furnaces with most being roughly 1 inch deep.

Furnace air filter comparison.

Compared to the home depot s method of ranking air filters fpr merv has wider range. Mpr measures ratings based on sizes 0 3 to 1 microns. 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.

Compared with the cheapest basic filters available medium efficiency merv filters like the nordic pure merv 12 can greatly reduce airborne dust mold spores pollen and even smoke and doing that. The higher the number the better the furnace filter is in capturing particles. Filtrete mpr 300 20x25x1 furnace filter. Fpr ratings are on a scale from 4 through 10.

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. Aprilaire 213 merv. Furnace filters are replaced by measuring the width by the length. If you re getting low airflow check the air filter a clogged filter can cut airflow to a trickle.

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. 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. The best air filters for protecting your hvac and clearing the air of pollen pet dander and smoke from consumer reports tests. Filtrete mpr 1000 16x20x1 ac furnace filter.

Merv has a scale of 1 to 20 with 20 as the best. Merv 8 pleated ac furnace air filter. So a filter that measure 20 inches long by 25 inches wide would be replaced by a 20 x 25 filter. The other two systems were created by 3m mpr and the home depot fpr to differentiate their offerings.

Filtrete mpr 1000 16x20x1 ac furnace filter is also one of the great. However fpr 1 doesn t necessarily equate to merv 1. While fpr s rating system goes from 1 to 10 merv s rating system goes from 1 to 20. Using an air filter with a merv rating higher than what your furnace or air conditioner manufacturer recommends can actually impair its performance.

The first product that i added to the review list was filtrete mpr 300.