Personal Protective Equipment
for HVAC Work

The Hierarchy of Controls

PPE is the last resort in the hierarchy of hazard controls - used when other methods cannot adequately reduce exposure. The hierarchy from most to least preferred:

1. Elimination - Remove the hazard entirely
2. Substitution - Replace the hazard with something less dangerous
3. Engineering controls - Physical changes to isolate workers from hazards (ventilation, guards)
4. Administrative controls - Work practice changes (procedures, scheduling, training)
5. PPE - Personal protective equipment as the last line of defense

OSHA requires employers to conduct a hazard assessment, select appropriate PPE, and provide it at no cost to workers. Workers must be trained on PPE selection, proper use, care, limitations, and when to replace it.

PPE Requirements for HVAC Technicians

Eye and Face Protection Details

Eye injuries are one of the most preventable workplace injuries. Choose protection appropriate to the hazard:

• Safety glasses with side shields - Minimum protection for general HVAC work; must meet ANSI Z87.1
• Chemical splash goggles - Sealed around the eyes; required when liquid refrigerant or chemical splash is possible. Liquid R-134a at atmospheric pressure vaporizes rapidly and can cause serious eye injury from freeze burns.
• Face shield - Protects the entire face; must be worn OVER safety glasses, not instead of them

Respiratory Protection - 29 CFR 1910.134

Before using a tight-fitting respirator, workers must:

1. Receive a medical evaluation (to ensure they can physically tolerate wearing a respirator)
2. Be fit-tested for their specific respirator model
3. Receive training on proper use, care, and limitations