Any appliance is designed after taking into consideration the needs of users and the environment in which it is going to be used. Manufacturers of appliances conduct research on the usability of their models based on consumer feedback. They apply the results of such research in developing new models in which the loopholes present in earlier designs are plugged. As new models are launched, it is common for many consumers to replace their existing appliances, which might have become outdated. Used appliances don't necessarily have to be discarded, as there is a significant demand for second hand appliances too. Used home appliances such as refrigerators, air conditioners, microwave ovens, dishwashers and washing machines are cheaper than new ones because of the depreciation factor.
Before buying a used home appliance, it is essential to check the extent of its usage and reconfirm that it is in working condition. It is always advisable to get a used appliance checked by a technician before purchase.
Some people prefer disposing off used home appliances when they do not get a good offer from buyers. In such situations, the discarded home appliance can be transported to a special factory, where the discarded appliance is split into parts and disposed off. This is usually done in accordance with environmental protection laws. Burning, burying or decontamination can dispose off harmful or poisonous parts. The parts, which are safe to be used, can be assembled as second hand appliances and returned to the market. A number of exporters, suppliers, manufacturers, factories and distributors engage in the business of dealing in used home appliances. In Japan, there is a law that ensures recycling of used home appliances because of the high cost of treating discarded ones to make them environmentally safe.
Used home appliances contain Chlorofluorocarbons (CFC), leaded glass and other hazardous chemicals. It is generally recommended that the clutter in the form of useless second hand appliances should be discarded. Some people prefer to donate used home appliances to religious or social organizations.