I have been taking apple cider vinegar for about 3 months and have seen good results. I have asthma, and it has really helped with my breathing. It has also helped with restless legs, muscle cramps, and has really helped my stomach, and psoriasis.
Freon is the cooling agent used in most air conditioning systems. Every air conditioning system needs a refrigerant (also called a coolant) that actually creates the cool air -- that's the role of Freon. As necessary as Freon is to the optimal performance of your your air conditioner, you do not want to handle a potential Freon problem yourself.
Air conditioners do cause some harm for the environment, mainly through energy use and CFCs. If not properly maintained can cause have some negative health effects as well. Air conditioners use energy, and energy comes from power plants. Power plants are known for the pollutants that the release into the air (mercury and CO2 among them.) Air conditioners also contain CFC's and HCFCs (the cooling agents inside your AC.) These cooling agents are what's punching holes in our ozone layer.