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What is a HEPA filter?

Thursday, July 30th, 2020 by Levi Brewer

How Does a HEPA Filter Work?

A HEPA filter is a unique air filter designed to capture up to 99% of debris floating in the air, most of which are as small as 0.3 microns. The filter is composed of twisted glass fibers that wind together to create a thick wall. When a particle enters the filter, it will either be removed by sticking to the fibers or being captured between them.

Common Air Pollutants HEPA Filters Remove

HEPA filters work to remove and reduce numerous types of air pollutants floating through your home or crawl space. This includes carbon monoxide, pollen, secondhand smoke, and mold. In cases of mold, we use air moving machines that have 2 HEPA filters to ensure our crew is safe and we rid your entire crawl space of mold.

How Long Does a HEPA Filter Work?

This filter is very durable and can last for up to three years before it needs to be replaced. However, if you find that the filter is covered in debris, it’s best to change it as soon as possible. This way, it will continue to do a good job of filtering the air. There are a few HEPA filters that can be vacuumed off rather than being disposed of. This can be determined by looking at the front of the filter. If it has “permanent” stamped on it, it can be reused.

The Benefits of Using One

  • It Reduces Allergens: One of the best benefits of HEPA filters is that they can reduce allergens. Thanks to its durable fibers, HEPA filters can catch many irritating microscopic particles like dust mites and pet dander.
  • It Improves Indoor Air Quality: Because it removes dangerous particles in the air, HEPA filters can also improve indoor air quality. One study done showed that an indoor HEPA filter worked to reduce indoor particles by 55%. 
  • It Removes Odors: Another great aspect of HEPA filters is that they remove odors. They will purify the air with the help of built-in carbon materials that will quickly dissolve gases and other chemicals in it.
  • It Removes Mold: We take mold very seriously. HEPA filters are the best way to remove mold from the air. We use up to 3 filters on one machine to ensure we get every mold spore in the home or crawl space.

A surprising amount of air you breathe in your home comes from your crawl space. Do you know what particulates are floating around down there? Call us today and we will determine what unhealthy particulates are in your crawl space and provide a FREE quote to remove all those harmful particulates.

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We serve the following areas

Our Locations:

Clean CrawlSpace Inc.
3100 Dutton Ave. Ste. 142E
Santa Rosa, CA 95407
1-707-706-6677


Clean CrawlSpace Inc.
747 E Brokaw Rd
San Jose, CA 95112
1-408-650-8110