Cannabis Vape vs Flower for Lung Health
The pick is a dry herb vaporizer set between 160 and 230 degrees Celsius (320 to 450 Fahrenheit). Combustion is the main source of lung exposure. A joint burns at 600 to 900 C. A vaporizer stays below the burn point, so plant material releases cannabinoids as aerosol instead of smoke.
side effects of vaping cannabis vs smoking flower
Cannabis smoke and tobacco smoke carry overlapping toxins: carbon monoxide, tar, ammonia, hydrogen cyanide. The American Lung Association states marijuana smoke contains many of the same toxins and carcinogens as tobacco smoke. A 2017 review by the National Academies of Sciences, Engineering, and Medicine found substantial evidence that cannabis smoking raises the risk of chronic bronchitis symptoms: cough, phlegm, and wheeze.
Does Vaping Cannabis Produce More of a High Than Flower?
The Pick: Dry Herb Vaporizer
- Temperature range: 160 to 230 C. No flame, no ash.
- A 2007 pilot study in Clinical Pharmacology & Therapeutics tested 18 participants. Smoking flower raised expired carbon monoxide. Vaporizing at 180 C held it near zero.
- Aerosol still carries fine particles and some tar. Filtration is not total.
- Long-term lung data on vaporizers runs weeks to months, not decades.
Option 1: Oil Vape Cartridge
- Carrier liquids include propylene glycol, glycerin, and terpene blends.
- Additives can break down into carbonyls at high coil temperatures. Lab tests report formaldehyde and acetaldehyde at high settings.
- The CDC linked vitamin E acetate to the 2019 EVALI outbreak. As of February 18, 2020, CDC counted 2,807 hospitalized cases and 68 deaths. Vitamin E acetate appeared in 51 of 51 lung fluid samples in one CDC lab study.
- Dispensary carts in states with testing rules avoid vitamin E acetate. Black market carts were the main outbreak source.
Option 2: Flower Joint
- Combustion at 600 to 900 C. Produces tar, carbon monoxide, and fine particulate matter.
- Joint smokers pull deeper and hold breath longer than cigarette smokers. That raises tar deposition per gram.
- Unfiltered. No temperature control.
Option 3: Pipe or Water Bong
- Water cools smoke and traps some tar and particulates.
- Carbon monoxide passes through water unchanged.
- Research on water pipes shows no clear drop in lung symptoms.
Option 4: Oral Products
- Edibles and tinctures bypass the lungs.
- Onset is 30 to 120 minutes. Effects last 4 to 8 hours.
- No inhalation exposure. Dose control is harder.
What the Data Does Not Cover
No long-term trial compares cannabis vape and flower on lung function over 20 years. Most lung data on cannabis comes from smoked flower. Vape data covers short trials and case reports. Users with asthma, COPD, or a history of EVALI should talk to a clinician before inhaling anything.