What should be done to ensure adequate ventilation in child care rooms?

Ensuring adequate ventilation in child care rooms is crucial for maintaining a healthy environment for children. Opening windows and doors allows fresh air to circulate and helps reduce indoor air pollutants, which is essential to promote respiratory health and general well-being. This method also helps to control humidity levels, preventing mold growth and maintaining comfortable temperatures.

Other options, such as relying solely on exhaust fans, may not sufficiently provide fresh air circulation, as they primarily remove stale air rather than introduce new air. Closing doors and windows would completely block airflow, effectively trapping pollutants inside, while turning off air conditioning could lead to poor air quality, particularly in warm conditions. Thus, the most effective approach for ensuring adequate ventilation in child care settings involves allowing fresh air to enter by opening windows and doors.