Odonil the use of this product is to clean the bad smell. I personally use this product it almost 1 months to end and it never enter bad smell and it cheap also the price of this product is around 20-30 rupees which is affordable for everyone who can’t buy air purifier those people can buy this product. Now, the most important question arise it really work because many of the consumer it is waste of money but the reality is just opposite because those people does’nt know how to use and made a biased review.