3M 7502 Half Facepiece Respirator 7500 Series Medium size Used once-Like new, no filters https://www.amazon.ca/7502-Respirator-facepiece-3M-Protection/dp/B000N7LOWI/ref=sr_1_4?crid=2B3WZSIQPKVQP&keywords=3M+Half+Facepiece+Respirator+7500+Series&qid=1661272598&s=industrial&sprefix=3m+half+facepiece+respirator+7500+series%2Cindustrial%2C49&sr=1-4