While filters keep air filtered, humans pose the biggest risk to cleanroom filtration. It is the responsibility of the employee to reduce the risk of contamination and ensure that the air is being properly filtered. Proper clothing such as gowns, coveralls, gloves, face masks, and goggles can help prevent contamination from employees. Cleanrooms may also incorporate sinks, showers, and other disinfection equipment in entry and/or exit areas for applications with very high cleanliness standards.