Furnace Filter Ratings

Airx health 20x25x1 merv 13 pleated air filter made in the usa box of 6.

Furnace filter ratings.

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 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. 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 higher the number the better the furnace filter is in capturing 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. Filters with higher merv ratings trap small particles more effectively than filters with lower merv ratings. The rating system is measured by a number between 1 16 with 16 being the best and 1 being the worst. The other two systems were created by 3m mpr and the home depot fpr to differentiate their offerings.

The higher the number the better it filters. Fpr ratings are on a scale from 4 through 10. Most residential filters range from 4 to 12. Home depot uses its own rating system on a scale of 1 to 10 called the filter performance rating.

Honeywell fc100a1037 ultra efficiency 4 furnace filters. So here is my list of the 10 best furnace filters. 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. Features a merv rating of 10 minimum efficiency reporting.

Merv has a scale of 1 to 20 with 20 as the best. These filter out enough of the large particles to protect the furnace while providing maximum airflow. 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. The higher the number the finer the filter so the more particles it traps.

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.