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| German | English |
| Luftqualität in Innenräumen | indoor air quality |
| Luftverschmutzung von Innenräumen | indoor air pollution Chemical, physical or biological contaminants in the air inside buildings and other enclosed spaces occupied by humans. This pollution can arise from tobacco smoke, pesticides, cleaning agents, gases released from building materials, rugs, household products, etc. |
| Luftverschmutzung von Innenräumen | indoor air pollution |
| Verschmutzung von Innenräumen | indoor pollution |