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CLEARANCE - ALL SALES FINAL! A PM2.5 filter is a mask insert that can be inserted into the inner pocket of a cloth mask to increase it’s filtering performance. It is made up of five filtration layers, including nonwoven polypropylene, meltblown fabric and a middle layer of activated carbon, that work together to achieve superior filtration performance.
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🇺🇸 Ship from USA · On Agora since 2024
$2.80