Ultrasonic Humidification

STULZ provides state-of-the-art humidification for mission critical applications and any environment where clean, efficient, and precise humidity control is required.

Features & Benefits of Ultrasonic Humidification



  • Multiple piezoelectric transducers immersed in a water bed impart high frequency oscillation
  • Alternating pressure and vacuum causes cavitation and production of very fine water mist
  • Average 1 micron diameter water droplets evaporate quickly in a room or moving air stream
  • All wetted surfaces are constructed of non-corrosive materials including plastic and stainless steel
  • Distributed power to the piezoelectric transducers is 48 Volts, AC or DC depending on application
  • Internal humidifier safeties include low and high water level switches and high temperature cutout


  • Adiabatic humidification process requires less than 10% of the energy required to boil water into steam
  • Additional benefit of evaporative cooling – improves efficiency of high sensible heat applications such as data centers
  • All specifications and selections include mixed bed deionization water treatment systems by Culligan
  • 100% of the demineralized water in the humidifier may be utilized and does not require a flush cycle
  • Extremely low operational expense equates to very short term Return on Investment (ROI)


  • STULZ Ultra-Series Proportional controls are engineered for single or multiple humidifier systems
  • Utilizes STULZ E² Microprocessor Controller for integrated operation of up to 16 humidifiers per zone
  • Ultra-Series control boxes enclose up to 8 power supplies each, providing power and control distribution
  • Proportional analog output from microprocessor converted to Pulse Width Modulation at humidifiers
  • Monitors and communicates various system functions and alarms including water quality via integrated control and/or optional BMS


  • Data Centers/Telecomm
  • Libraries/Museums
  • High Tech Manufacturing
  • Printing/Duplication
  • Food & Beverage
  • Agriculture/Tobacco
  • Health Care Facilities
  • Laboratories
  • Commercial Offices

Click Here to Read the Ultrasonic Independent Study from Detroit Edison