Merv Air Filter

Minimum efficiency reporting value merv is a standard that rates the overall effectiveness of air filters.

Merv air filter.

The scale represents a quantum leap in the precision and accuracy of air cleaner ratings and allows for improved health reduced cost and energy efficiency in. The scale ranges from 1 16 with 16 being the most effective. Merv otherwise known as minimum efficiency reporting value is a measurement scale that rates the effectiveness of filters at trapping airborne particles. With a dust spot efficiency of 30 35 they are 20 times more efficient than regular fiberglass filters.

An air filter s merv rating is a scale from 1 16 that describes the minimum efficiency of the air filter. Merv 8 rated filters are high quality filters. Hepa is a type of pleated mechanical air filter. Higher value merv rating equates to finer filtration meaning fewer dust particles and other airborne contaminants can pass through the filter.

Some of the common particles that filters are tested for include pollen dust mites textile. Filters with higher merv ratings trap small particles more effectively than filters with lower merv ratings. 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. Here s an in depth description of the process used to determine merv from the national air filtration association.

It is an acronym for high efficiency particulate air filter as officially defined by the u s. Merv stands for minimum efficiency reporting value. This type of air filter can theoretically remove at least 99 97 of dust pollen mold bacteria and any airborne particles with a size of 0 3 microns µm. Minimum efficiency reporting value commonly known as merv is a measurement scale designed in 1987 by the american society of heating refrigerating and air conditioning engineers ashrae to report the effectiveness of air filters.

Merv 8 filters remove basically the same particulates as a merv 6 but they are more efficient.