Impact of vaping on respiratory health The BMJ Chemical Exposure and Vaping Related Lung Disease Linked Are Herbal Hookahs and Vapes Really Safe? Think Again. Many people believe that herbal hookah or nicotine free vapes are harmless alternatives to smoking. In reality, hookah smoke still produces carbon monoxide Cannabis vaping elicits transcriptomic and metabolomic changes involved in inflammatory, oxidative stress, and cancer pathways in human bronchial epithelial cells American Journal of Physiology Lung Cellular and Molecular Physiology American The Science of Vaporization: A Safer Alternative to Smoking Cannabis Blog Greenleaf Medical Clinic Vaping Associated Pulmonary Injury Physiopedia