Today, We face the environmental problem about many unwanted smell from the pollution. The simple way we buy the chemical spray to get rid of the unwanted smell and odor removal that we generally buy from the supermarket. But it very expensive and mainly produced from the chemical substances that could be harmful to the environment and ourselves. So, We made the product spray from the Kaffir lime leaves instead of the chemical spray to get rid of these unwanted odor with the natural Kaffir lime leaves that fragrant and easy-to-find in the local area. From the experiment, We found that the spray from the Kaffir lime leaves can eliminate the unwanted smell. Without the harmful chemicals and reduce the expenses.