NWT Antibacterial UV Copper-Thread Mask

Chosen by Ulta Beauty in LA! Very light masks that pass the candle test. All day comfortable wear, they won’t muffle your voice specially recommended for active wear. About them:‘Comfortable everyday mask, with a polyester blend outer layer and a copper-lined ionized quartz yarn inner layer. Copper’s antimicrobial properties have been well documented, including killing viruses & germs within four hours, substantially faster than several days on most other mask materials in the market.