The document mainly introduces the safety precautions and instructions for using Haier air conditioners, including using control panels or remote controls to operate the machines, not spraying paint or insecticides on the machine surface, and disconnecting the power when not in use. It also mentions some taboos for using air conditioners, such as not installing them in flammable, explosive, or corrosive gas environments. In addition, it introduces Haier's warranty policy and charging standards.