I am nebulizer dependent. 4/5 times a day. I have been using this type of nebulizer for about 3 years. None of the brands lasted longer than 3 months. Usually by the time there was an issue, I was out of warranty and would have to purchase new. So when I purchased Facelake, I purchased 2 units so I would never be without the ability to use a treatment. This nebulizer gives a superior treatment from any nebulizer I have used in 20 + years, so I’m hooked on this brand. The company addresses any issues immediately and it is a year warranty. It is a good idea if you are totally dependent on treatments to get 2 units. Once you use this one, you will never be satisfied with inferior treatments.