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Classroom microbial VOC measurements compared against reported respiratory symptoms in pupils
Measured microbial volatile compounds in Swedish classrooms were reported in association with respiratory symptoms and diagnosed asthma among the pupils studied.
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This library reports what studies found. An entry describes a study's design, its findings in its own terms, and its limits. Nothing here is a claim about what a Sage Co. home does, delivers, or prevents.
Last reviewed August 30, 2026.
What they studied
- Air sampling in 23 classrooms in Swedish schools, with 1,014 pupils surveyed.
- Measurement of microbial volatile organic compounds, molds, bacteria, and plasticizers indoors and outdoors.
- Questionnaire assessment of respiratory symptoms and doctor-diagnosed asthma.
What they found
- Mean indoor microbial VOC concentrations were reported as substantially higher than outdoor concentrations.
- Higher levels of 3-methylfuran, dimethyl disulfide, 1-octen-3-ol, 2-heptanone, and 3-octanone were each reported in association with respiratory symptoms.
- Associations were reported in classrooms without visible mold growth.
What this study does not establish
- Cross-sectional design; symptom reporting and exposure were measured at the same time.
- Symptoms were self-reported by questionnaire.
- Associations do not establish causation or a safe concentration.
- This entry reports the study. It is not a statement about any building Sage Co. designs or constructs.
Source
Kim JL, Elfman L, Mi Y, Wieslander G, Smedje G, Norbäck D (2007). Indoor molds, bacteria, microbial volatile organic compounds and plasticizers in schools — associations with asthma and respiratory symptoms in pupils. Indoor Air 17(2):153–163.
mVOCsschoolsasthmachildren
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