Choosing the best 20x20x1 Air Filter For Your Allergies in 2021

4 min read

How to Pick the Right 20x20x1 Air Filter for You Using the MERV Rating System

The MERV (Minimum Efficiency Reporting Value) rating system was designed to help tell how well an air filter(also known as an AC filter or furnace filter) removes particles from the air. Higher rated filters are more efficient at removing a larger percentage of smaller particles from the air each time it passes through the filter.

What is MERV rating of the filter in your home? You may not even know because, more often than not, the company that services your HVAC system replaces the air filters during the service call. In many homes each air return has a grill that opens so that you can replace your air filter(Your filter may be in the furnace instead of in a return grill in the wall).

Good air filters can protect the air quality in your home and do not have to be expensive. You can buy 20x20x1 Air filters in bulk(a case of six) and save a considerable amount over what you may pay at ACE Hardware or Lowes for a single filter.

The EPA says about MERV 6 is the level that begins to protect air quality, so MERV 8 is a good minimum level for an air filter if you want to begin to protect your air quality. A minimum of MERV 11 is usually recommended for allergy suffers. MERV 13 is usually found in high end residential, hospital common areas, and high end commercial building that are LEED certified. A 20x20x1 air filter MERV 13, is considered an excellent air filter for allergies.

Air Filter MERV Ratings Simplified

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Home Air Filters: What You Need to Know Simplified

We are going to give you a simple way to pick the right air filter for your home because choosing the best air conditioner filter for your allergies can sometimes be a confusing task. The simple reason is that most people are not experts on their heating and air conditioning systems and generally rely on the recommendation of the company that services their HVAC (Heating Ventilation Air Conditioning) equipment.

What contaminants are in the air in my home

What Type of Air Filter do I have In My Home?

The MERV (Minimum Efficiency Reporting Value) rating system was designed to help tell how well an air filter removes particles from the air. What is MERV rating of the filter in your home? You may not even know because, more often than not, the company that services your HVAC system replaces the air filters during the service call. Each air return has a grill that opens so that you can replace your air filter. Depending on the size of your home you may have one air return to several. When replacing filters I see a lot of contractors use a cheap flat panel air filter with no MERV rating or a very low MERV rating. I have asked contractor many times when they put that filter in over the years and the answer is always the same. "This is the kind of air filter and I use is my self, those expensive air filters are a waste of money". Most people do not know much about how their HVAC system works so they just rely on what their contractor says. Basically, all these cheap air filters do is protect your HVAC equipment from large dust and lint. Essentially the cheap air filters with no MERV ratings can be so porous that particles that can damage your HVAC equipment, can pass right through the filter. Good air filters can protect the air quality in your home and do not have to be expensive.

What Kind Of Air Filter Do I Need to Protect the Air in My Home?

MERV 13 20x20x1 air filter for allergies

The EPA says indoor air quality(IAQ) can be 200% to 500% more polluted than the air outside. In Order to protect the air in your home, the EPA says air filter rating of MERV 7 to 13 is needed. Air filter rating of 1 to 6 is basically to protect the HVAC equipment.