2017 No https://pubmed.ncbi.nlm.nih.gov/28330428/ Tirkonnen, Jenni Europe Review Students Teachers Particulate Matter (PM) Respiratory symptoms Indoor air Moisture damage Particulate matter (PM) School Toxicity In vitro The teachers working in the moisture-damaged schools reported respiratory symptoms such as cough (p = 0.01) and shortness of breath (p = 0.01) more often than teachers from reference schools. Toxicity of the PM sample as such did not differentiate index from reference buildings but the toxicity adjusted for the amount of the particles tended to be higher in moisture-damaged schools.