Khalidah went to a shopping mall and saw a promoter demonstrating the uses of a Shumay food processor. The food processor cost four times the price of an ordinary food processor. Khalidah was so impressed with the demonstration model that she bought 1 unit. The packaging and user manual stated that the food processor was suitable for industrial use. When Khalidah used the food processor, she found that it only functioned at the speed and capacity of an ordinary food processor. The next day, she tried to slice sausages using the food processor. The promoter's model could slice sausages, but Khalidah's food processor could not.

Advise Khalidah as her legal protection provided under the Sale of Good Act 1957.