Author Question: Which of the following is the optimum percentage of relative humidity? A) 3060 percent B) 5075 ... (Read 57 times)

nmorano1 · **on:** Jul 26, 2018

Which of the following is the optimum percentage of relative humidity?

A) 3060 percent B) 5075 percent C) 2550 percent D) 2040 percent

Question 2

Why do most humidifiers require annual cleaning and media replacement?

A) The water attracts dirt from the air.
B) Minerals in the water are left behind in the sump and media.
C) A chemical reaction between the media and the water causes a crusty white buildup.
D) The media is slowly dissolved by the water used in the humidifier.