What does the regulation state regarding indoor ventilation?

The regulation emphasizes the importance of providing adequate ventilation with fresh air in indoor environments. This is crucial for maintaining a healthy atmosphere, as proper ventilation helps to remove contaminants, excess humidity, and ensure an adequate supply of oxygen. Adequate ventilation is linked to improved air quality, which can enhance both comfort and productivity for occupants.

Inadequate ventilation can lead to a range of health issues, such as respiratory problems and other long-term health effects, particularly in workplaces where people spend extended periods. The focus on fresh air highlights the need to introduce outside air into indoor spaces rather than relying solely on recirculated air.

The other options do not align with health and safety regulations. Minimal or no ventilation fails to address the need for maintaining a healthy environment. Likewise, limiting ventilation to just air conditioning systems overlooks the necessity of fresh air, as air conditioning alone does not ensure adequate air exchange and may lead to unhealthy indoor air quality.