What is the Best Type of Air Filter for HVAC Systems?

When it comes to improving indoor air quality, selecting the right type of air filter for your HVAC system is essential. Traditional filters, such as fiberglass and pleated filters, are popular but they don't do much to improve air quality. These filters can only capture about 20% of particles between 3.0 and 10.0 microns in size, which includes dust, carpet fibers, and pollen. UV light filters can remove bacteria and viruses from the air, but they don't do much to combat other contaminants like dust.

For this reason, these filters are often used in conjunction with more advanced filtration systems, such as HEPA filters. Fortunately, a recent innovation in air filters has made it possible to achieve high MERV ratings (11 to 1) with a low pressure drop. If you're looking for a filter that meets these standards, Nordic Pure is a great option. If you can't find the Nordic Pure in your size or if you'd prefer to buy a filter from a store right away, Honeywell FPR 9 filters and Filtrete MPR 1500 filters are similar and widely available at retail stores.

According to the NIH literature, filters with these ratings can significantly reduce indoor fine particle pollution and help alleviate some respiratory conditions. HEPA quality filters used in HVAC systems can also help improve indoor air quality by filtering out some of the most concerning particulates. These filters come in a variety of sizes and are usually more affordable than other options. The pleated electret filter from Nordic Pure is especially effective at trapping just about anything you would breathe at home.

Both Honeywell FPR 9 and Filtrete MPR 1500 claim to be based on the ASHRAE 52.2 standard from the American Society of Heating, Refrigeration, and Air Conditioning Engineers, which is used to establish MERV ratings. However, neither company provides an easily accessible explanation of how their own ratings differ from those of the MERV or how they compare.

This larger surface area makes filter filters seven times more effective than standard types of air filters.

In addition to filter power, the FPR also indicates what type of airborne contaminants are ideal for capturing each filter. If you're living in an area affected by wildfires, you'll need to change your filters more often than usual.

There are some indicators that can help you know when it's time to replace them. To make sure you don't forget to change your filter on time, you can set up a reminder in your calendar so that you can check the status of the filter from your smartphone. Electrostatic filters are also great for people with allergies since they prevent allergens from spreading throughout the home. Ultimately, choosing the right type of air filter for your HVAC system is essential for improving indoor air quality and protecting your health.

Cora Lecy
Cora Lecy

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