MERV 13 filter for smoke

Does a 1-Inch Media Upgrade to the MERV 13 Standard Create a Valid Healthy Home Air Filter?

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A four-step instructional infographic titled "VALIDATING YOUR MERV 13 AIR FILTER UPGRADE" about properly assessing and implementing a home air filter upgrade.

A customer called us last month about a 1-inch MERV 13 filter he’d installed three weeks earlier. His air conditioner was cycling every ten minutes, and the bedroom at the end of the hall felt stuffy. The filter was the correct size. His system was installed in 2003. The math didn’t work. Here’s the good … Read more

What MERV Rating Do You Really Need To Filter Wildfire Smoke Effectively?

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Horizontal graphic answering “What MERV rating do you really need to filter wildfire smoke effectively?” showing PM2.5 smoke icon, MERV 13 filter, and HVAC efficiency symbol.

When wildfire smoke shows up, most advice online jumps straight to “buy the highest MERV you can.” In the field at ThermixHVAC.com, we’ve seen that approach backfire—homeowners install a super-dense filter, airflow drops, the system runs longer, and the house still smells smoky because smoke doesn’t behave like “regular dust.” This page gives you the … Read more