Experts say cloth and surgical masks won't filter the tiny particles in wildfire smoke.
This article was originally published by 9News Colorado (RSS) on Thursday, July 16, 2026. TownPost surfaces local news from over 40 outlets and uses AI to score each story for relevance to Longmont and the surrounding area.
Relevance score: 70/100. This story has high local relevance to Longmont residents.
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