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How to Know What Size Air Filter to Purchase

changing-air-filter

Commercial services can help you find the right air filter for your HVAC system.

To make the most of your HVAC system, you can get assistance and advice through commercial services. One thing they can help with is choosing the right air filter for best performance from your air conditioning and heating system. An important factor to consider is the size of airborne particles the air filter should be able to remove from the air. But how do you do this? By looking at the air filter's MERV rating.

Choosing the Right MERV Rating

A minimum efficiency reporting value (MERV) rating classifies air filters based on the size of particles it can filter out from the air. Air filters can have a MERV rating ranging from one to 20, with the higher number representing an air filter’s improved ability to remove smaller particles from the air.

A MERV rating below five means the air filter will only be capable of removing large particles from the air, such as pollen, hair and carpet fibers. A MERV rating greater than five, but below 12, will be most common for most households and offices. These filters focus on removing typical airborne particles from the air, including mold, auto emission particulates, spores and pet dander.

Air filters with a MERV rating between 13 and 16 will remove bacteria and most smoke particles. Home and business owners who are especially particular about their indoor air might want an air filter with a MERV rating this high, although they'll need to confirm their HVAC's air handler can handle an air filter with such a high rating. They will also need to understand that an air filter with a higher rating will need replacing more often.

Ratings above 16 are overkill for homes and the vast majority of businesses. These belong in special buildings, such as hospitals and laboratories, where removing the tiniest particles from the air (like a virus) is mission critical.

If you need commercial services for your HVAC system or simply want to get more information about choosing the right air filter, reach out to our team at Jerry’s Air Conditioning and Heating to speak with one of our HVAC air filter experts today.

Jerry's Air Conditioning & Heating



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