Stylies Alaze HumidifierThe Stylies Alaze humidifier sets a new standard for evaporative humidifiers. Despite having only one filter cassette, the Stylies Alaze almost achieves the same performance of a much larger 2 cassette humidifier. This is thanks to the new patented DAST technology. DAST Evaporator Humidifier Direct Air Stream Technology DAST technology uses at least 30% less electricity compared to common evaporative humidifier systems.