Incorporate appropriate engineering controls to reduce potential risk to patients and office personnel via aerosol exposure of SARS‑CoV‑2.2
CDC does not provide guidance on the decontamination of building heating, ventilation, and air conditioning (HVAC) systems potentially exposed to SARS‑CoV‑2. To date, CDC has not identified confirmatory evidence to demonstrate that viable virus is contaminating these systems. CDC provides the following recommendations for proper maintenance of ventilation systems and patient placement and volume strategies in dental settings.