Wastage of money.I will suggest not to purchase it. I used it for six months then writing my review to aware other customers. It had not working LED lights. It has really cheap construction. No way in hell will these survive shopping in India- if they ever worked in the sellers store to begin with. Also after much research, I've learned that you shouldn't use ozone for continuous purification. It is only rated safe for blast purification prior to inhabitation. You will read a lot about how ozone has been proven to be safe for household use, but the actual tests have shown the opposite. For household use, stick to ionizers.
