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.
types of respirators osha requires employers to evaluate respiratory hazards and base the selection of respirators on the amount and type of contamination that is present warning failure to wear an appropriate fit tested respirator places a person at high risk of inhaling allergens and toxins from mold and other construction dust