The illustration shows a generic example of a box plot with the maximum, third quartile, median, first quartile, and minimum values labeled. The relative vertical spacing between the labels reflects the values of the variable in proportion.
Respirator Types Two basic types of respirators are: â¢ air-purifying; andâ¢ supplied-air respirators. Air-purifying respirators remove airborne contaminants such as particles, toxic vapors, and/or gases.
Lets look at the various types of respirators available. Each type protects against different hazards at different levels. The appropriate respirator chosen for use will depend on the anticipated airborne risk for the responder. It is important to select the right respirator for a specific job.