Short description
This guideline applies to the intended and local humidification of air by means of standalone units as well as for decorative water-carrying devices (such as fountains, cascades and water walls) which affect the air humidity in a room. Units originally intended for residential use, which are used in workplaces are also subject to the requirements specified by this guideline.Such units incur a particular hazard arising from, e.g., the supply of unfiltered microbiologically contaminated breathing air and insufficient maintenance.