Short description
This standard applies to standalone units for the intended and local humidification of air 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 standard. The standard factors the particular hazards incuring from such units arising from, e.g., the supply of unfiltered microbiologically contaminated breathing air and insufficient maintenance.