TrueSTEAM takes the best features from current steam humidifiers with their efficiency, performance and decreased water consumption, and combines it with the ease of installation, reliability and value of flow-through humidifiers. TrueSTEAM is different from others because it operates independent of equipment operation. And, with its near 1:1 humidification delivery rate, TrueSTEAM delivers the right amount of humidification to keep your customers satisfied. This product should be purchased & installed by a qualified contractor.