What does cannabis smoke do to the lungs?

Cannabis companies asked if they can spare lab space for COVID-19 testing Smoking cannabis may not be healthier than tobacco, according to new research from McMaster Research also suggests cannabis smoke contains toxins, chemicals and carcinogenic similar to the ones found in tobacco smoke. More recently, McMaster University researchers reported that the impacts of smoking cannabis and smoking tobacco are more similar than many think. Smoke is no friend of the lungs, whether it’s from tobacco, cannabis or even a burning wood fire. As for how cannabis smoke affects lung health, up to date and long-term data remains insufficient. Cannabis smoke and lungs Cannabis smoke can injure the cell linings of the large airways in the body leading to an “increased likelihood of symptoms of chronic bronchitis (inflammation in the lungs),” notes a 2013 study.