What Does Air Filter Merv Mean?

What is the meaning of the word MERV? The American Society of Heating, Refrigerating and Air-Conditioning Engineers designed the minimum efficiency reporting value. The effectiveness of an air filter is determined by the MERV rating.

Is MERV 11 or 13 better?

The particle arrestance of the MERV 11 furnace filters is very high. The particle arrestance of the MERV 13 filters is 98%. It is a lot more efficient. Those who live in a moderately polluted area, have mild allergies, or own a pet will benefit from a MERV 11 rated air filter.

Is MERV 8 good enough?

A MERV 8 air filter can be used to trap most indoor particulates that could be harmful to asthma and allergies.

Does higher MERV rating restrict airflow?

The highest MERV ratings can be harmful to your heating, ventilating, and air-conditioning system. The higher the MERV rating, the less air flow there is.

Is a MERV 11 filter too restrictive?

Most of the time, a MERV 11 air filter is not too high for residential use. The MERV 13 air filter should provide very efficient air purification in a home without affecting the flow of air.

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Will a MERV 13 filter hurt my furnace?

If you have an air filter that has a rating higher than 13 it will restrict air flow to the point that could cause damage to your system and you will have to spend more money to fix it.

Can my HVAC handle MERV 13?

The ability to capture particles is reported by the Minimum Efficiency Reporting Values. Smaller particles can be trapped by higher rated filters. The MERV-8 filter is installed as the default in many home heating and air conditioning systems.

Can my furnace handle MERV 11?

It can, but it isn’t really an issue under extreme circumstances. Millions of homeowners depend on the higher MERV filters that most modern heating, ventilating, and air conditioning systems can work with.

What is the difference between MERV 10 and MERV 11?

A MERV 9 will trap less than 50% of particles, MERV 10 will stop up to 70%, MERV 11 will catch up to 80%, and MERV 12 will catch up to 85%.

What MERV is best for HVAC?

The ASHRAE says MERV 13 is the best rating for residential heating, ventilating, and air conditioning systems. Make sure your system can handle that rating. A higher MERV rating can cause the system to use more energy and use less air.

What MERV rating can my HVAC handle?

Filters with a rating of MERV 16 or less are considered to be system-grade filters for residential, commercial and hospital use. In surgical operating rooms, clean rooms and other contexts, the MERV 17 through 20 filters are used.

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Is MERV 12 too restrictive?

It’s not a good idea to use a high MERV (12+) filter for an appliance. The MERV filters stop more and smaller particles of pollutants, allergens and other junk that leads to bad indoor air quality. That is a truth.

What type of air filter is best for HVAC?

The highest level of protection for your home can be found in the HEPA filters. They can remove even the smallest particles from the air. People with respiratory issues may benefit the most from a high efficiency particulate air (HEPA) filter.

How often should you change a MERV 11 filter?

It is recommended that furnace filters be replaced every 3 to 4 months for MERV 8 and every 6 months for MERV 10 and 11. When to change your home air filter is just one of several factors that should be considered.