My unit is not cooling like it was 2 weeks ago, it has like a cool breeze coming from it. If you turn it on auto or on it doe what it suppose to do, my question is does it take freon and what kind and is it easy to install.

Adding refrigerant is not diy project. Must be added by certified tech. YOu can check the filter to see if it is clean.Also check the coils for cleaness as well. Beyound that you will need to call for service. You should have unit serviced annually for top performance. Good Luck