In the context of the COVID-19 pandemic, endoscopy services must adopt preventive measures to maintain proper functioning due to a high risk of disease contagion. Triage protocols before and after the procedure, personal protective equipment, and environmental contamination control are some of the endoscopy society's recommendations. However, the risk of infection may remain high due to poor control over the source of contamination.Using a combination of standardized supplies and accessories in a hospital, a ventilation mask adapted to be used in endoscopic procedures is proposed to reduce COVID-19 contamination.