Secondhand marijuana smoke: What are the risks to your health? UCLA Health Tobacco free workplaces help protect health and support safer environments for everyone. By reducing secondhand smoke, encouraging cessation, and promoting cleaner workplaces, employers can improve overall employee well being, while also reducing costs and Can You Fail a Drug Test from Secondhand Smoke? Sanctuary Wellness Institute Do you think your vape has something in it that it shouldn't have? WEDINOS offers a free, anonymous postal testing service so you can find out whether your vape contains other Surface Detection of THC Attributable to Vaporizer Use in the Indoor Environment Scientific Reports Can vaping cause you to fail a sobriety test? VCU News Virginia Commonwealth University