by Mark Hansberger on August 30, 2012August 6, 2018 Prevent Refrigerant Huffing With A Cap On Your A/C Service Valve If you haven’t heard of refrigerant huffing, you’re not alone. It’s a growing practice among drug abusers that involves removing the cap from the service valve on your outdoor air conditioning condenser and inhaling the […]Read More Filed Under: Air Conditioning Tagged With: Arizona– increasing danger– refrigerant huffing– safety cap– Yuma