1. As long as a cup of vinegar is placed in the toilet, the odor will disappear. The period of validity of fragrant vinegar is generally 6-7 days, that is to say, the fragrant vinegar should be replaced every other week or so
2. Open the lid of a box of cool oil and put it in the lower corner of the toilet to remove the odor. A box of cool oil can be used for 2 to 3 months< 3. Calcium superphosphate deodorization. Often sprinkle a little superphosphate in the toilet, the odor can be removed. This method is also suitable for removing the stink in chicken cages.