The Therma-Cool company developed a new room air conditioner that is small and portable. There are three models that cool 200, 400 and 600 square feet quickly and quietly. The units can be set to automatically shut off after 2,4, or 8 hours and can be controlled with an app from a phone. Therma-Cool offers a 5-year warranty on all units. Customers can also subscribe to a filter replacement program to receive a new filter every 8 weeks and the company ships them free. The units come in three colors - white, silver and black. Use the total product concept and explain which of the elements in the scenario above are in each of the three layers