Smoking and secondhand smoke

 
When using marijuana in your home, keep in mind that secondhand smoke, whether from tobacco or marijuana, can be dangerous. Make your home smoke-free to keep your loved ones healthy. 
 
Smoking
Daily or near-daily marijuana smoking is strongly associated with chronic bronchitis, including chronic cough, sputum production and wheezing. Marijuana smoke, both firsthand and secondhand, contains many of the same cancer-causing chemicals as tobacco smoke.
 
 
Vaping 
Vaporizers heat marijuana to release its active ingredients, like THC. They don’t burn the plant. There hasn’t been enough research to know if using a vaporizer is safer than smoking or if it’s tied to breathing or lung issues.
 
 
Secondhand smoke
Secondhand smoke from marijuana has many of the same cancer-causing chemicals as smoke from tobacco.
  • Protect your children and family from the effects of secondhand smoke. Don’t allow anyone to smoke in your home. 
  • It’s illegal to use any form of marijuana in a motor vehicle. Keeping your car smoke-free will keep you in compliance with the law and also protect your family and friends from the toxic effects of marijuana smoke.
 
Secondhand high
Exposure to secondhand marijuana smoke is unlikely to make you "high." This means a person probably won’t fail a workplace urine test or driving impairment blood test after breathing someone else's marijuana smoke.