Possible indoor health hazards include inadequate ventilation, tobacco smoke, pets, microbial flora caused by moisture damage, volatile impurities from materials, pest animals, smells and noise.

If there is a reason to suspect that a dwelling poses a health hazard, you should primarily contact the owner of the property (property manager, landlord). If necessary, expert companies can be used to determine the reason for the health hazard. The responsibility for maintaining and repairing buildings and determining the reasons for any damage rests with the owner of the property.

In their role as authorities, health inspectors provide guidance in the investigation of a suspected health hazard in a residential space if the resident and/or housing organisation cannot find a solution to the problem on their own.