Hello, this is business law study could you please help me in solving this, this is part of my assignment from chapter 21 sales of goods.And with each and every principle applies on it.

Maria Henderson contacted Cool Air Contracting Ltd., a local refrigeration contractor with a view to obtaining an air conditioner for use in the beverage room of her hotel. She explained to an employee of the company that she wished to install a device that would not only cool the room, but remove tobacco smoke as well. The employee described a number of room air conditioners (for which the company was the local distributor). He recommended a particular model that he indicated was adequate for a room the size of Henderson's beverage room. Henderson entered into a contract for the model suggested by the contractor and had the equipment installed.

After the equipment was put into operation, Henderson discovered that the equipment did an adequate job of cooling the room, but did not remove the smoke to any significant extent. She complained to the company, but the company was unable to alter the equipment to increase its smoke-removal capacity. When the company refused to exchange the air conditioner for a larger model, Henderson refused to pay for the equipment. The company then brought an action against her for the amount of the purchase price. Discuss the issues raised in this case and indicate how a judge might decide the matter.