An older cooling system will likely use R-22 refrigerant, which is detrimental and toxic to the natural ozone layer. Due to this fact, regulations have been implemented to start phasing out the use of R-22. But, what does this mean if you own a cooling unit that uses R-22? This article is going to talk about how you can learn what type of refrigerant your air conditioner uses. We will also talk about the various steps you can take if you have a cooling system that relies on R-22. Click through to read more.