Merv ratings or minimum efficiency ratings value are numbers assigned to air filters to determine their efficiency when it comes to removing particulates from the air higher merv ratings translate into better more efficient filters.
Furnace filter ratings for allergies.
The american society of heating refrigerating and air conditioning engineers ashrae has a slightly different scale for filters called the merv rating.
In simple terms manufacturers of furnace filters perform testing to assess how well the filters block out or trap air.
Filters with higher merv rating.
The most common ratings for filtrete filters are 300 1000 mpr but the top furnace filters for allergies are 1500 2800 mpr.
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.
Beyond all the other factors involved in choosing the best furnace filter focus most of your attention on the ratings.
Furnace filters for allergies are more accurate in capturing the microscopic particles.
How merv ratings affect air quality.
Best filters for allergies.
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.
Following factors can lead you to the best air filter for the home furnace.