Wis. Stat. § 254.22: Indoor air quality.

The department shall do all of the following:

(1) Investigate illness or disease outbreaks suspected of being caused by poor indoor air quality. The department shall promote or require control measures if indoor air quality is established to be the cause of illness or disease outbreaks.

(2) Assist local health departments in the adoption of regulations that establish standards for indoor air quality in public buildings to protect the occupants from adverse health effects due to exposure to chemical or biological contaminants.

(3) Provide training and technical support to local health departments for conducting indoor air quality testing and investigations.

(4) Assist the department of safety and professional services with the enforcement of s. 101.123.