Filtering Wildfire Smoke in Indoor Air with PuraShield Air Scrubbers

As record wildfires continue to spread across the West, people across the region are battling unhealthy air both outside and indoors. Vulnerable populations, like hospital patients and those with respiratory illnesses, are especially at risk for complications from wildfire smoke inhalation.

Wildfire smoke contains dangerous particles and chemicals that are released into the air, and average indoor air filtration systems may not be powerful enough to remove them—leaving people struggling to breath safely inside their own homes, workplaces, hospitals or schools.

Purafil has over 50 years of experience implementing research-backed filtration technology to solve some of the world’s most challenging air filtration problems, and is now applying its industry-leading filtration innovation, the PuraShield 500 Advanced Multistage Air Scrubber, to help keep people safe from wildfire smoke.

In fact, the PuraShield 500 is now being deployed into hospitals on the West coast to make sure patients aren’t literally choking on the air they breathe while fires burn just a few miles away.

Each PuraShield unit contains:

1) MERV 8 Pre-filter that catches large particles, such as those created as wildfires burn, and removes them from the air.

2) Molecular Filter with patented§ molecular filtration media that not only removes 99.99% of aerosols carrying viruses*, but also filters toxic chemicals, including those released into the air from fires.

  • Wildfire smoke generally includes dangerous gases and chemicals, often including aldehydes, acid gases, sulfur dioxides and nitrogen oxides—all of which are effectively filtered using PuraShield’s molecular filtration.

3) PuraWard Filter is protected from many viruses, bacteria, and mold using copper and silver ions†.

4) HEPA Final-filter that cleans the air of particulates, allergens, bacteria and viruses as small as 0.3 microns before releasing clean air back into the room.

While the types and amounts of chemicals in the air during a wildfire emergency depend on what’s burning, Purafil’s patented molecular filtration media provides a truly differentiated solution for fighting the pollution and dangers caused by wildfire smoke in every application.

Because the COVID-19 threat still looms large, special attention for indoor air filtration is more important than ever: the PuraShield is renowned for removing 99.99% of aerosols carrying viruses, in addition to its proven smoke-filtering capabilities. For more information or to find the right PuraShield product for you, visit

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