It is commonly known that R-12 is a ozone depleating substance so it should not be purged into the atmosphere but should be recovered and disposed of properly your children will thank you. I dont know what the law,s are in the USA but if you vent in Canada you are liable for a $ 50,000 dollar fine _______________________________________________ AMC-List mailing list AMC-List@xxxxxxxxxxxx http://www.amc-list.com/mailman/listinfo/amc-list or go to http://www.amc-list.com