These refrigerants are made of Hydrogen, Fluorine and Carbon, none of which will damage the ozone layer. The most popular are 134A, 407C and 410A.
How AWGs Work
See dehumidification process.
In hydrometrical reports, complete saturation of the air with moisture is designated by a humidity level of 100. Partial saturation is noted by smaller numbers. See Absolute and Relative Humidity.