True or False: Refrigerants are generally heavier than air, necessitating ventilation caution in enclosed spaces.

Refrigerants being generally heavier than air is a crucial point in understanding their behavior in the environment, especially in enclosed spaces. When refrigerants leak, their density can cause them to accumulate at lower levels, making them potentially hazardous. This is why ventilation is particularly important in areas where refrigerants are used, such as mechanical rooms or spaces that house air conditioning and refrigeration equipment.

If refrigerants do escape into an enclosed environment, their heavier-than-air characteristic means they can displace oxygen, which poses a risk of asphyxiation for anyone present. Proper ventilation helps mitigate this risk by allowing any buildup of refrigerant gas to dissipate, ensuring a safer atmosphere. This is especially significant during maintenance activities or if there’s a system failure leading to a leak.

The statement acknowledges the importance of awareness regarding refrigerants in enclosed spaces, reinforcing necessary safety precautions when working with these substances.