“… 17 After completion of laryngoscopy, room sanitization with an Environmental Protection Agency–registered, hospital-grade disinfectant is recommended, with a 2% to 3% hydrogen peroxide solution, 2-g/L to 5-g/L chlorine disinfectant, or 75% alcohol. 19 According to the Centers for Disease Control and Prevention (CDC) Web site, it is unknown how long the air inside a particular examination room remains infectious and likely relates to the room size, rapidity of air exchange, patient factors (like viral shedding), amount of coughing/sneezing, and length of time a patient was in the room. 20 The CDC suggests that rooms with 50 air changes per hour (ACHs) take approximately 6 minutes and 8 minutes to purify the air with 99% and 99.9% efficiency, respectively.…”