Your vehicles’ A/C system requires the use of a toxic gas we routinely call “Freon.” Decades ago, all vehicles used R12 Freon. More recently, a safer form came out called Freon R134a. Now, there is a much safer form called R1234yf. These gases cannot be mixed, so your technician needs to be aware of which Freon is used in your vehicle. It’s this gas that delivers the clod charge to the air inside your vehicle and cools the interior.
To keep your cool all year around, make sure your A/C system is well-charged, has no leaks, and is operating properly by getting it checked twice each year.