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Alex Huffman, Ph.D. - @ProfHuffman@mstdn.social on X: "What's your favorite high-quality mask? Despite my profile pic, I've been wearing these N95 respirators I got months ago at Home Depot. I tried the
HDX N95 Respirator Face Mask (NIOSH Approved) – Digital Telecom Technology Limited
HDX N95 Non Valve Respirator Face Mask - 8 Pack for sale online | eBay