I’ve always been shocked to find out how little people understand about their home HVAC systems. It seems like this is not a huge concern for anyone until it’s broken and expensive to repair. Most of us do not even know what chemical is used in our AC systems, however, it won’t be too long & that will change for the better. That is because the U.S, but government will soon stop making the single chemical in question, one that has been proven to be damaging to our ozone layer. That exact chemical, R22, is extremely crucial to making your home cooling system work well, however it contains quite a bit of chlorine that is truly dangerous to our environment whenever the earth is exposed! This change which is a vital section of the finally workings of an air conditioner, unfortunately will likely affect you. You see, cooling system units installed before the 2010 cutoff date most likely will still use the old refrigerant. This chemical, widely available through the services of an Heating & A/C provider, should not really need to be added to your AC system now, unless the system has a leak. At that point it can only be obtained by a licensed Heating & A/C specialist who is specifically trained & certified to use this chemical. As a fully trained cooling system specialist, I actually hold a license that allows myself and others to purchase & regularly use freon for my air conditioner repairs on the job. That freon is truly luxurious & it will only continue to drastically increase in price, only to be phased out as hastily as the EPA can get it done.