In my experience this is not a good product.I buy this product in one month ago I seen all out machine advertaisement then I belive this is a good product.After using this product I feel bad experience this is not working well.i on all out machine in night but after 5 minitus this all out machine power down then the product working not well in my room.Mosquitos also came in the room but this machine not prevent them.In lots of days I have same experience.All out machine smell is very bad it makes peoples health problems this machine oil made lots of artificial items and it is danger our health.This is not userfriendly product.The product oil life is short time.The product is not good for using