(12/1/21) Chemist, artist and industrial hygienist Monona Rossol is the founder of Arts, Crafts and Theater Safety, Inc. The not-for-profit corporation is dedicated to providing health and safety services to the arts. She is also the health and safety director for the Local 829 Union of the United Scenic Artists International Alliance of Theatrical Stage Employees. In this installment of Leonard Lopate at Large on WBAI, Monona offers advice on how to protect yourself from the Delta and Omicron variants as we head into the holidays.