Furnace Filters Merv Rating System

In general filters with a rating of merv 16 or below are considered to be hvac system grade filters for residential commercial and general hospital use.

Furnace filters merv rating system.

The merv filter rating is the domestic and international industry standard rating system established by the. Merv 17 through merv 20 filters are typically used in surgical operating rooms clean rooms and other contexts that require absolute cleanliness. Ranging from 1 to 20 the larger the number the better the filter is at catching small. Merv ratings extend from 1 to 16.

The standard rating system for filters is called minimum efficiency reporting value or merv. When i say it s the standard rating system i mean it. For that reason the merv rating was developed. This rating system reports how well the filter captures and holds dust.

Use this rating system compare filters made by different manufacturers. The merv rating system is intended to be used to determine the filter s ability to remove particulates from the air. If your filter is either too dirty or too resistant it can cause airflow problems hurting efficiency and performance. This rating system is defined in an ashrae standard 52 2 which specifies the conditions under which the testing must be done and the performance required to meet each merv level.

A low merv rating means that the filter does not remove as many particulates from the air. You can check for this information online by searching for your furnace brand and model. But even among filters of the same type there can be a wide variance of quality and efficiency. Merv stands for minimum efficiency reporting value.

It is a measure of the efficiency of the air filter the amount of airborne pollutants it removes. This is an industry standard rating system. The chart below shows the merv ratings. It also shows air filter efficiency.

Merv stands for minimum efficiency reporting value which is a rating system designed by the american society of heating refrigerating and air conditioning engineers. It shows particle size ranges. This can create more resistance in airflow than a system is designed to manage thus making it. In short the higher the merv rating is the more resistant the filter is.

Choosing the right furnace filter. The three air filter rating systems differ in ranges and were created by separate organizations. Mpr measures ratings based on sizes 0 3 to 1 microns. The rating indicates the size of particles the air filter is designed to capture.

Merv rating is essential for finding the proper furnace filter for your home. To determine resistance filters use the merv rating system. This indicates the highest merv rating the system can accommodate without overworking and causing damage. Fpr ratings are on a scale from 4 through 10.

An air filter s merv rating is a scale from 1 16 that describes the minimum efficiency of the air filter. Choosing the right furnace filter involves knowing what merv rating type size and brand of filter you need.