Modern plastic materials are lightweight, tough, corrosion resistant and provide a myriad of specific compounds and property profiles, allowing them to be easily moulded and formed into complex shapes. Plastics' ease of fabrication has resulted in reduced product costs for major appliances. As a result of these advantages, the use of plastics has increased manifold in the home appliance industry. Vacuum formed plastic products are used in refrigerator inner door storage and liners, in washing machine agitators and mini baskets and in lightweight portable air conditioners. In addition to these convenience features, the outstanding thermal insulation characteristics and shape optimization provided by plastics reduce product energy consumption. Plastics have also greatly increased the product life and durability of major appliances.