To understand the effectiveness of cannabis inhalers, it’s important to learn how the lungs function. They are made of alveoli, or tiny sacs that regulate the flow and exchange of gases. As you inhale, the alveoli capture the oxygen to send it into the bloodstream and, on exhale, the alveoli contract to release CO2 from the bloodstream.
Inhaled cannabis works in the same way. As you inhale and the compounds reach the lungs and bronchial tubes, the cannabinoids are absorbed by the alveoli and sent to the bloodstream. Inhalers are able to effectively reach the bronchial tubes and alveoli because of the use of propellants, which allows more of the beneficial compounds to reach the lungs and bronchial pathways to be effectively absorbed into the bloodstream. This efficient delivery of cannabinoids renders inhalers a high-bioavailability (the effectiveness of compounds reaching the bloodstream) option.