Here are the two main types of respiratory equipment:
Powered Air-Purifying Respirators (PAPR’s) — They have a battery-powered blower that pulls air through attached filters, canisters, or cartridges and can protect you from gases, vapors, or particles when they’re properly equipped.
Self-Contained Breathing Apparatus (SCBA’s) — They're used for entering into or escaping from environments that are considered to be immediately Dangerous to Life and Health (IDLH). They have their own breathable air supply and can be either open or closed circuit.
If you’re looking for one of the best places to find Draeger respirators, be sure to browse through the broad selection we have at Engineer Supply.