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Continued: Systematic Review of the <br />Health Risks <br />•Indirect Passive Exposure <br />–11 studies analyzing the chemical and toxicological compounds in the aerosol produced by human volunteers or a smoke machine <br />•5 with noted conflicts of interest <br />•3 that did not disclose whether conflict of interest existed <br />–Key Findings <br />•Fine and ultrafine particular matter and nicotine levels higher than ambient air <br />•Volatile Organic Compounds (VOCs), such as formaldehyde and other carcinogenic carbonyls and hydrocarbons <br />•Metals from device are emitted into air- nickel, chromium, silver <br /> <br />