The Vapo hopes to bridge the gap between lathering up with suds to washing them out. We tend to let the shower run even when we are soaping up and this is mainly because we want to feel the warm spray whist we lather. Its blatant waste of water, but we do it! No excuses mister! The Vapo provides vapor (or a warm mist) to keep us warm and damp, thus reducing the amount of water used in a single shower. Super excellent I tell ya!