There are several types of SARs, each suited for different applications:
Continuous Flow SARs: Provide a steady flow of air to the user, ideal for non-IDLH (Immediately Dangerous to Life or Health) environments. Pressure Demand SARs: Supply air on demand and maintain positive pressure inside the facepiece, suitable for IDLH situations. Combination SARs: Incorporate an auxiliary escape cylinder for emergency use, offering added safety in hazardous conditions.
