Air humidification standards
| Standard | Topics and contents |
| VDI 6022 | Indoor air technology, indoor air quality |
| DIN 3803 | Central ventilation and air-conditioning systems (VDI ventilation rules) |
| DIN 1946-4 | Ventilation and air-conditioning systems in buildings and healthcare facilities |
| DIN 1946-6:2019-12 | Ventilation and air conditioning part 6: ventilation of apartments general requirements, requirements for design, execution, commissioning and handover as well as maintenance |
| DIN EN 1717 | Protection of drinking water against contamination in drinking water installations and general requirements for safety devices to prevent drinking water contamination by backflow; German version EN 1717:2000; technical rule of DVGW |
| DIN EN 16798-1:2021-04 | Energetic evaluation of buildings - ventilation of buildings part 1: Indoor climate input parameters for the design and assessment of energy performance of buildings in terms of indoor air quality, temperature, light and acoustics - module M1-6; German version EN 16798-1:2019 |
| EN 13053:2020 | Ventilation for buildings - central air handling units - performance characteristics for units, components and assemblies; German version EN 13053:2019 |
| Directive 2014/35/EU | Low Voltage Directive |