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However, additional constituents are also often present in electronic cigarette liquid and aerosol (7, 8), thus exposing the smoker to potentially numerous harmful substances

The best purifiers quickly clear up both smoke and chemicals

Reduced Tampering Risk : With proper supervision, the use of test strips can reduce the risk of sample tampering, as the testing process is more transparent and less complicated

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Front Immunol 5, 435

People naturally release respiratory fluids through droplets that are released when exhaling when breathing, speaking, coughing, sneezing or smoking