As we assess what we've learned from the COVID-19 pandemic, keeping interior spaces clean is part of the equation to preventing similar situations in the future. Since no building is immune from the spread of sickness and infection, we look to take precautions through more stringent cleaning measures to keep guests, students, staff, patients, and residents safer and more comfortable. This course will cover common ways surfaces can become contaminated, the causes, impacts, and the solutions for cleaner, more resilient interiors.