US study confirms secondhand vapor is harmless

An air sampling study by the California Department of Public Health indicates that the levels of toxic substance present in a vaping area are insignificant.

The California Department of Public Health has carried out a number of air sampling tests in vape shops across the state, forming part of their initiative to confirm the effects of secondhand vapor.

The studies were carried out by Public Health Expert Dr. Michael Siegal, who stated “This study, although conducted under very high exposure conditions in a small, non-ventilated vape shop with many employees and customers vaping and clouds of vapor visible, did not document any dangerous levels of exposure to any hazardous chemical.”

The situation created for the sampling aimed to reflect a scenario where a high level of exposure to secondhand vapor was present. Based on the evidence collected Dr. Siegal concluded, “This study adds to the evidence that under real-life conditions, ‘secondhand vaping’ does not appear to pose any significant health risks.”


Air Sampling Results

  • Nicotine: Not detected
  • Glycidol: Not detected
  • Formaldehyde: 7.2 ppb
  • Diacetyl: Not detected using standard method
  • 2,3-Pentanedione: Not detected using standard method
  • Acetyl butyryl: Not detected using standard method
  • Acetoin: Not detected using standard method
  • Acetone: Not detected
  • Ethyl benzene: Not detected
  • m,p-Xylene: Not detected
  • o-Xylene: Not detected
  • Toluene: Not detected
  • Acetaldehyde: Not detected
  • Acetonitrile: Not detected
  • alpha-pinene: Not detected
  • Benzene: Not detected
  • Chloroform: Not detected
  • d-Limonene: Not detected
  • Methylene chloride: Not detected
  • Methyl methacrylate: Not detected
  • n-Hexane: Not detected
  • Styrene: Not detected


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