Review on HEALTHLINE HLBT Water Bottle Humidifier by Linda Wiley

I was on an oxygen machine to recover from COVID pneumonia and the constant flow of oxygen into my nose dried my nostrils to the point , where they were raw and bleeding . I added this after the oxygen machine to add some moisture to the stream. It helped, but without heating the water or increasing the contact time, it wasn't enough. I don't blame this device; For what it costs we can only expect a basic bubbler. But just to help future users, it can't add enough moisture to the oxygen without drying you out.