Furnace Filters Merv Rating System

The merv rating helps you determine.

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. Ranging from 1 to 20 the larger the number the better the filter is at catching small. Merv stands for minimum efficiency reporting value which is a rating system designed by the american society of heating refrigerating and air conditioning engineers. Merv stands for minimum efficiency reporting value.

It shows particle size ranges. Merv ratings extend from 1 to 16. In short the higher the merv rating is the more resistant the filter is. The three air filter rating systems differ in ranges and were created by separate organizations.

Choosing the right furnace filter involves knowing what merv rating type size and brand of filter you need. Merv rating is essential for finding the proper furnace filter for your home. To determine resistance filters use the merv rating system. When i say it s the standard rating system i mean it.

An air filter s merv rating is a scale from 1 16 that describes the minimum efficiency of the air filter. It is a measure of the efficiency of the air filter the amount of airborne pollutants it removes. It also shows air filter efficiency. This can create more resistance in airflow than a system is designed to manage thus making it.

But even among filters of the same type there can be a wide variance of quality and efficiency. If your filter is either too dirty or too resistant it can cause airflow problems hurting efficiency and performance. Choosing the right furnace filter. 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.

The standard rating system for filters is called minimum efficiency reporting value or merv. Merv 17 through merv 20 filters are typically used in surgical operating rooms clean rooms and other contexts that require absolute cleanliness. Mpr measures ratings based on sizes 0 3 to 1 microns. A low merv rating means that the filter does not remove as many particulates from the air.

The chart below shows the merv ratings. This rating system reports how well the filter captures and holds dust. This is an industry standard rating system. The merv filter rating is the domestic and international industry standard rating system established by the.

Use this rating system compare filters made by different manufacturers. For that reason the merv rating was developed. You can check for this information online by searching for your furnace brand and model. This indicates the highest merv rating the system can accommodate without overworking and causing damage.

Merv stands for minimum efficiency reporting value. The higher the merv rating the smaller the pores are for air to flow through an hvac filter.