Which of the following is NOT a type of respirator?

Electrostatic respirators are not recognized as a type of respirator used for protecting individuals from airborne contaminants. The other options represent well-established categories of respirators that are utilized in various settings to provide adequate respiratory protection.

Air-Purifying Respirators (APRs) use filters or cartridges to remove specific contaminants from the air before inhalation. Self-Contained Breathing Apparatus (SCBA) provides breathable air from a cylinder, completely isolating the user from surrounding air, which is essential in immediately dangerous to life or health (IDLH) environments. Supplied Air Respirators (SARs) deliver clean air from a separate source via a hose, allowing users to work in areas where the air may be contaminated or lack adequate oxygen.

Understanding the types of respirators is crucial for ensuring safety and compliance with occupational health standards, illustrating their importance in various industrial, medical, and hazardous environments.