Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 9/27/2025

Mosquito Coil Smoke Toxicity

Mechanisms of Toxicity

  • The irritant mechanism of mosquito coil smoke is similar to other combustion products, causing reversible inflammatory effects at the site of contact, according to the American Academy of Allergy, Asthma, and Immunology 1
  • Particulate matter induces oxidative stress and inflammatory pathways in the lungs, as reported by the European Respiratory Society 2
  • Aldehydes, particularly formaldehyde and acrolein, suppress immune responses and cause direct cellular damage, as found by the European Respiratory Society 3
  • Polyaromatic hydrocarbons result in immune suppression through reactive epoxide metabolites, as reported by the European Respiratory Society 3
  • Carbon monoxide reduces oxygen-carrying capacity and affects inflammatory cytokine expression, as found by the European Respiratory Society 3
  • Aldehydes, such as formaldehyde and acrolein, also cause direct cellular damage, as reported by the European Respiratory Society 4