First of all i would like to offer you this great product call the Homedics Brethe Air Revitalizer  . At first i thought this wasn't one of the greatest product but when i started using it i thought it was a great and fine product that would allow people to breath clean and fresh air not only for great repiration but very good for the health environment that surround us everyday keeping you feel better all day long good when having stuffing nose prevent from breathing germs.The Homedics Brethe Air Revitalizer is easy to clean and easy to use just add warm water every time and watch it move alot...