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How An HVAC Air Filter Affects Indoor Air Quality

An HVAC system will benefit your house in a lot of ways, one of them is the improved indoor air quality. The air filter in your room is a contributing factor. Today we are going to take a look at how the air filter in your HVAC system will affect your indoor air quality.

The Basics

The HVAC air filter will remove particulates from the air that might cause problems for you or your pets. These filters come in different styles with different ratings. These filtration abilities can help to keep your home healthy and safe.

When air is pulled through the HVAC system and across the filter, the fineness and other filter qualities remove problem particulates from the air before the air is spread throughout the house. As long as the filter is clean and in good condition, this process will repeat.

Minimum Efficiency Reporting Value

The MERV (Minimum Efficiency Reporting Value) is a number that is assigned to air filters to determine their ability to filter out particles. The higher the rating, the more that it can filter out. Let’s take a look at what the different ratings will filter out in general.

MERV 1-4 Filters out your basic household particles
MERV 5-8      Filtrates mold, spores, and other harder to filter common household particles
MERV 9-12       Starts to filter out some of the less common air particles and will also filter out legionella
MERV 13-16        Gets rid of bacteria, smoke, and some bodily contaminants such as sneezing
MERV 17-20 Filters out almost anything that can be removed from the air

For the most part, your house does not need a MERV above 12. This level of filtration is mainly for clean facilities or people who have specific problems with air quality.

Air Filter Cleaning and Replacement

Air filters for HVAC systems are only as good as the quality of the filter. Depending on the MERV level and the number of particulates in your home, the HVAC filter will either need to be cleaned or replaced.

Filtering air in your home can change the overall feel of your home. This is especially true if your home has a pet or other source of particulates. Take a look at the various filters out there to decide which ones are right for your home.


If you live anywhere in Northern Virginia including the cities listed below, feel free to call AirBenders at 703-793-9090 and we can come and address your problem. If you do not live in areas mentioned below, please consult with your local professionals.

Northern Virginia, Ashburn, Sterling, Chantilly, South Riding, Mclean, Vienna, Reston, Herndon, Reston, Tysons Corner, Fairfax, Oakton, Great Falls, Falls Church, Arlington, Springfield, Alexandria, Leesburg and surrounding areas.

Disclaimer: Some home improvement projects may be dangerous by nature and may present risk of serious injury or death if not done properly. Know your limitations. These tips and blog assumes the reader has sufficient knowledge of the subject matter. All work performed based on following these tips are done at your own risk. You agree to not hold AirBenders, LLC and its affiliates responsible for any personal or property damage that may arise from your use of this information.

 

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