Air Filter Tips and Info

The most important thing you need to know about the Air Filters in heating and cooling system is to change them regularly.  The most common cycle is to do it monthly.  The reality is that they need to be changed before they are restricted in air flow from the dust and particles they filter out of the air.

In the southwest if we have a couple days of dust storms it may be time to change the filters regardless of how long it has been since they were changed.

There are many different types of filters to choose from.  Which types is best for you?

Before you select an air filter, you need to know which size to buy to fit your HVAC systems. The easiest way to determine this is to look on the old filter currently in your system. You can also find this information in your HVAC owner's manual or manufacturer’s specifications.

First make sure you know the correct size air filter you need.  The current filter should have the size marked on the side.  The filter should completely fill the space where the filter is located.  If you don’t have a filter in place try to carefully measure the opening for length and width.

Next, make certain the air filter you choose fits the needs of your family based on the level of filtration desired.  Different types of air filters have different capabilities. Performance is determined by the size and density of the material used, as well as the size and volume of the particles being filtered.

A high-efficiency furnace filter can slow airflow too much, but low-efficiency filters don't filter dust very well. Get a better understanding of the issues and learn how to find the right filter for your furnace.

The minimum efficiency reporting value (MERV) scale goes from 1 to 16. For most homeowners, a more expensive MERV 7 or 8 pleated filter provides a good balance between cost and filtration efficiency. These filters trap 80 to 95 percent of the particles 5 microns and larger—more than enough filtration for most households.

Furnace efficiency is one thing. But if you're a clean freak or have family members with allergies or low-immunity issues, spend more on a high-efficiency (MERV 11 and higher) filter. Then just make sure you stay on top of filter changes to protect your furnace.

High-efficiency filters capture 99 percent of airborne particles as small as 0.3 microns (bacteria and viruses, fumes and pollen). Figure the extra cost into your decision.

Finally, never switch from a fiberglass filter to a high-efficiency filter without first talking to your HVAC technician. The technician can boost fan speed to compensate for the reduced airflow. Even then, you still have to be diligent about replacing the filter regularly. A clogged filter can burn out the blower motor, damage the heat exchanger and cost you hundreds of dollars in wasted energy.

Looking for a fast and fair company to work with for your Heating and Air Conditioning repair or replacement needs?  Give Aaron’s Mechanical Service a call and let us help you get cooled off! Call 623-388-4436

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Aaron’s Mechanical Service
623-388-4436
info@aaronsmechanicalservice.com
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