Furnace Filters Merv Rating System

Use this rating system compare filters made by different manufacturers.

Furnace filters merv rating system. The higher the merv rating the smaller the pores are for air to flow through an hvac filter. The standard rating system for filters is called minimum efficiency reporting value or merv. Ranging from 1 to 20 the larger the number the better the filter is at catching small. It also shows air filter efficiency.

Merv stands for minimum efficiency reporting value. A low merv rating means that the filter does not remove as many particulates from the air. 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. 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.

Merv stands for minimum efficiency reporting value which is a rating system designed by the american society of heating refrigerating and air conditioning engineers. If your filter is either too dirty or too resistant it can cause airflow problems hurting efficiency and performance. When i say it s the standard rating system i mean it. 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. It shows particle size ranges. This rating system reports how well the filter captures and holds dust. 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. Mpr measures ratings based on sizes 0 3 to 1 microns. This can create more resistance in airflow than a system is designed to manage thus making it. You can check for this information online by searching for your furnace brand and model.

The merv filter rating is the domestic and international industry standard rating system established by the. Choosing the right furnace filter involves knowing what merv rating type size and brand of filter you need. The merv rating system is intended to be used to determine the filter s ability to remove particulates from the air. Merv rating is essential for finding the proper furnace filter for your home.

But even among filters of the same type there can be a wide variance of quality and efficiency. This is an industry standard rating system. For that reason the merv rating was developed. Choosing the right furnace filter.

To determine resistance filters use the merv rating system. The three air filter rating systems differ in ranges and were created by separate organizations. Merv ratings extend from 1 to 16. The chart below shows the merv ratings.

The rating indicates the size of particles the air filter is designed to capture. In short the higher the merv rating is the more resistant the filter is.