Merv has a scale of 1 to 20 with 20 as the best.
High efficiency furnace filters merv rating.
Filters with higher merv ratings trap small particles more effectively than filters with lower merv ratings.
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So what does merv stand for anyways.
If your family has health or allergy issues then you may want to look for a high efficiency filter that s merv 11 or higher.
Merv stands for minimum efficiency reporting value and is a measure of how well a filter removes particulates from the air.
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.
A low merv rating means that the filter does not remove as many particulates from the air.
The higher the number the better the furnace filter is in capturing particles.
Conversely a high merv rating indicates that the filter does a good job of removing particulates from the air.
But for most households a merv 7 or 8 filter might be the sweet spot between performance and cost.
An air filter s merv rating is a scale from 1 16 that describes the minimum efficiency of the air filter.
Merv rating is essential for finding the proper furnace filter for your home.
When shopping for furnace air filters don t confuse merv with other rating systems that may appear on packaging especially from big box home improvement stores.
Merv is short for minimum efficiency reporting value.