Cooling devices are tools designed to lower temperatures in various environments. Common examples include air conditioners, fans, and refrigerators. These devices work by removing heat from a space or object, making it more comfortable or preserving food. In homes, air conditioners cool entire rooms, while fans circulate air to create a breeze. In kitchens, refrigerators keep food fresh by maintaining a low temperature. Each cooling device plays a vital role in enhancing comfort and safety, especially during hot weather or in preserving perishable items.