R-410A Refrigerant

R-410A is an enviromentally friendly, next generation product that
has replace R-22 as the HVAC industry's standard refrigerant. 
Many refrigerants developed before R-410A
contains chlorine, which is harmful to the ozone layer. 
R-410A is chlorine-free and therefore better for the enviroment. 
In fact, the Clean Air Act requires that as of 2010, all new air conditioning
units manufactured in North America must use chlorine-free refrigerants.
So by purchasing and R-410A heat pump, you're purchasing the latest in 
refrigerant technology....and helping the enviroment!