Replaceable active carbon filters compatible with majority of Dust Masks available in the market, isolate up to 99-percent of dust, pollen, hazardous chemicals, fumes, heavy metal particles etc. Package Included: 10 × Activated Carbon N99, PM 2.5 filters (Mask is not included) OUR PROMISE Our priority is your satisfaction.If you have any problems, please contact us through email at the first time.Normally, you will get reply in 24 hours. We promise 30 days no reason to return policy. Please buy it in time to prevent out of stock.
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