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Sport Mask With Exhalation Valves Price. Sport mask with active carbon exhalation valves filters anti fog haze half face mask pm2.5 dust proof face cover for outdoor cycling running, come with 6pcs activated carbon filters replacements : This 3m respirator exhalation valve in blue is a spare part for the 3m 6000 half face mask.

Cycling Face Mask With Active Carbon Filter Breathing
Cycling Face Mask With Active Carbon Filter Breathing from www.ebay.com

Wholesale high quality dust air filter protective breathe exhalation valve. Position the respirator under the chin. This 3m respirator exhalation valve in blue is a spare part for the 3m 6000 half face mask.