Air Filters: The More You Know About Them, the More You'll Get Out of Them

Air Filters: The More You Know About Them, the More You'll Get Out of Them

You're probably already aware that replacing your air filter should be part of your routine air-conditioner maintenance. But it can pay to know more about this essential component of your cooling system. Actually, the more you know about air filters, the more you'll get out of them -- in terms of peak efficiency and home comfort. Here are some facts about air filters:

• MERV ratings: All air filters have minimum efficiency reporting values. This value is a reflection of a filter's ability to remove particulates such as dander, dust and smoke from the air stream. A MERV 1 filter is the least effective, and a MERV 16 is the most effective. A MERV 9 to 12 filter is generally recommended for homeowners who want highly effective dust control. If you decide to go with one of these filters, make sure you check it monthly. Because a filter in this range is denser than a filter with a lower MERV rating, it can get clogged more easily and restrict airflow, which can ultimately cause damage to your air conditioner. If you have any doubt about the type of filter you should be using, get in touch with your HVAC professional. There is no real Standard testing procedure that regulates how MERV ratings are established, so it's best to consult your HVAC professional first.

• Whether to clean or replace: Some types of air filters are meant to be disposable. These filters should not be cleaned and reused. Check this type of filter every month, and change it when it looks dirty. Some filters, however, can be cleaned. A washable filter should be checked frequently and cleaned as often as every few weeks. Make sure it's thoroughly dry before you return it to the air conditioner. If you're wondering whether your filter is the disposable or washable type, check your owner's manual or contact your HVAC-system professional.

• NOTE: Filters can be rated high on the MERV scale, but low in the ability to let air pass through easily. This causes restrictions making the system less efficient with lower air flow, and could cause harm to your system. Air Assurance carries Clean-Climate filters which are made to Air Assurance specifications and have been tested for both MERV and Static Pressure, giving you the best of both worlds.

• HEPA filtration. High efficiency particulate air filtration is the top-of-the-line option in particulate removal and is widely used in hospitals, where it's important to have air that's as free of organic pollutants as much as possible. But these filters are extremely dense and not appropriate for many cooling systems. If air quality is a special concern in your home, and you're serious about HEPA filtration, consider a whole-house air purifier.

If you have any questions about air filters, don't hesitate to contact Air Assurance. We can help you find the filter that's best suited to your system. And we can help you with all your other home-comfort needs, as well. We serve homeowners in Broken Arrow and greater Tulsa.

Our goal is to help educate our customers in the Tulsa and Broken Arrow, Oklahoma area about energy and home comfort issues (specific to HVAC systems). Image courtesy of Shutterstock

Air Filtration Systems: How They Work

A mechanical air filtration system can remove particles of dust, animal dander and dust mites from the air you breathe at home or work, improving your comfort and health. Here's how the filters work:Basic air filtration systems consist of simple panels that cover the intake of furnaces or air vents. The most basic ones are made of fiberglass or polyester and allow air to pass through but trap large particles. Depending on the filter, it is meant to be either replaced or washed periodically.Though these basic filters are effective against dust, smoke and pollen, they don't work to trap harmful molds, bacteria or viruses, which are much smaller and can seep through. This is where High Efficiency Particulate Air (HEPA) filters can come in. HEPA filters more efficiently capture spores and viruses, filtering out nearly all airborne particulates. Despite one drawback -- motorized fans blow the air through HEPA filters, which can be a bit noisy -- they are the most widely used filters on the market.However, technology is advancing every day, and there are some filtration devices that approach HEPA filtration levels, but allow the filtration to happen without the fans and noise.  You can visit www.IQAIR.com to find out more.  We are the only IQAIR dealer in Oklahoma! They've been featured on Extreme Makeover, as filtration devices used for people with hyper-sensitivity, allergies, or problematic lung and heart patients.Another option: UV filters, which can be combined with HEPA filters to make them even more efficient. HEPA filters catch the harmful pollutants in the air, but UV filters neutralize them. They release short-wave ultraviolet light that breaks down the particulates on a molecular level, altering their DNA and killing them.Air Assurance has been servicing the Broken Arrow and Tulsa region for over 30 years. Please feel free to contact us to ask about air filtration systems or any other heating and cooling questions.Our goal is to help educate our customers about energy and home comfort issues (specific to HVAC systems).  For more information, click here to download our free Home Comfort Resource guide. Air Assurance services Tulsa, Broken Arrow and the surrounding areas. To get started, check out our website or see our current promotions.