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.
Aerators introduce air into the water stream to produce a larger and whiter stream soft to the touch and non-splashing. Aerators are the usual choice for residential faucet applications. NRG water saving aerators come in low flow rates to provide maximum savings. Our aerators.