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 Gas Masks - Gas mask types include half-mask air-purifying respirators and full-face respirators. Find out how each of the different types of gas masks work.