Furnace Filter Ratings

The higher the number the better it filters.

Furnace filter ratings.

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. Filters with higher merv ratings trap small particles more effectively than filters with lower merv ratings. Airx health 1 merv 13 furnace filters. Honeywell fc100a1037 ultra efficiency 4 furnace filters.

Home depot uses its own rating system on a scale of 1 to 10 called the filter performance rating. So here is my list of the 10 best furnace filters. Merv has a scale of 1 to 20 with 20 as the best. This furnace filter has an fpr rating of 10 or a merv of 13 meaning it can capture particles as small as 3 microns and it even has an electrostatic charge that helps attract microscopic particles.

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. Airx health 20x25x1 merv 13 pleated air filter made in the usa box of 6. 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. Furnace manufacturers prefer the traditional spun fiberglass ac filters merv 2.

The merv rating was created by ashrae as a rating system for filters and measure the size of debris that can pass through a filter at the micron level. Most residential filters range from 4 to 12. Features a merv rating of 10 minimum efficiency reporting. The higher the number the finer the filter so the more particles it traps.

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. The other two systems were created by 3m mpr and the home depot fpr to differentiate their offerings. These filter out enough of the large particles to protect the furnace while providing maximum airflow. The minimum efficiency reporting value merv scale goes from 1 to 16.

An air filter s minimum efficiency reporting value merv rating measures how effectively the filter stops dust and other contaminants from passing through the filter and into the air stream.