Face masks are a part of everyone’s life right now, including construction job sites. If you wear a reusable cloth face covering, it’s important to keep it clean. Per OSHA, The Centers for Disease Control and Prevention provides guidance on washing face coverings: https://www.cdc.gov/coronavirus/2019-ncov/prevent-getting-sick/how-to-wash-cloth-face-coverings.html
OSHA also suggests following those recommendations, and always washing or discarding cloth face coverings that are visibly soiled. Read more tips and information about cloth face coverings, here: https://www.osha.gov/SLTC/covid-19/covid-19-faq.html#cloth-face-coverings and https://www.cdc.gov/coronavirus/2019-ncov/prevent-getting-sick/diy-cloth-face-coverings.html
There is a host of information on the Council's COVID-19 Resource Center. Check it out: http://www.flcrc.org/Module/News/NewsDetail/Coronavirus_Information_Center?id=115