Merv Air Filter

Hepa is a type of pleated mechanical air filter.

Merv air filter.

Merv stands for minimum efficiency reporting value. Some of the common particles that filters are tested for include pollen dust mites textile. The scale ranges from 1 16 with 16 being the most effective. The merv rating system is intended to be used to determine the filter s ability to remove particulates from the air.

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. Merv otherwise known as minimum efficiency reporting value is a measurement scale that rates the effectiveness of filters at trapping airborne particles. Here s an in depth description of the process used to determine merv from the national air filtration association. Minimum efficiency reporting value merv is a standard that rates the overall effectiveness of air filters.

Higher value merv rating equates to finer filtration meaning fewer dust particles and other airborne contaminants can pass through the filter. Micro dust merv 13 replacement for trion air bear 259112 102 and 255649 102 air filter 2 pack. With a dust spot efficiency of 30 35 they are 20 times more efficient than regular fiberglass filters. Filters with a merv 11 rating have a dust spot efficiency of 60 65 and are 30 times more.

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 rated filters are high quality filters. An air filter s merv rating is a scale from 1 16 that describes the minimum efficiency of the air filter. It is an acronym for high efficiency particulate air filter as officially defined by the u s.

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.