Wood, transparencies, film, paper, textiles, leather, plastic, tablets – many materials absorb humidity, causing them to expand. Humidifying systems prevent material fluctuations. In numerous branches of industry, they ensure constant, uniform production quality, prevent electrostatic charge and keep the reject quota to a minimum. At the baker's and in painting plants, they enable production processes to take place that rely on controlled humidity.

Different systems are available: isothermal humidifiers produce hot steam, while adiabatic models produce a cold mist from energy-efficient atomisation.

Hot steam is produced by dipped electrodes, electric or gas-fired heating. Atomisers work with pressurised water, compressed air, centrifugal force and ultrasound. They are also suitable for air cooling.

Humidifiers are available as stand-alone systems, for installation in ventilation ducts and as modules for distribution networks.