I have been reading some scientific reports lately. Even an article from scientist who apposes the medical use of cannabis. They have all been saying that THC breaks down dead lung cells which could have formed into cancer cells. My question is, for a non-smoker, who vaporizes cannabis would they actually be causing a positive effect on the health of their lungs?

Yes, vaporizing weed is good for your lungs. THC dilates blood vessels in your lungs which makes it easier for them to clean themselves, and it has the cancer-fighting properties you mentioned.

I had been smoking enough to develop a smoker's cough and vaping definitely sped up the healing process in my lungs.

Vaporization as a smokeless cannabis delivery system
Clinical Studies and Case Reports

Smokeless Cannabis Delivery Device Efficient And Less Toxic
Smokeless Cannabis Delivery Device Efficient And Less Toxic

Volcano is to Vaporizer As Porsche is to Automobile
CCRMG

Recommendation to Patients: "Don’t smoke, Vaporize"
CCRMG

Decreased respiratory symptoms in cannabis users who vaporize.
Decreased respiratory symptoms in cannabis users who vaporize.

Use of vaporizers reduces toxins from cannabis smoke
IACM-Bulletin

Antineoplastic activity of cannabinoids
Antineoplastic activity of cannabinoids

Delta(9)-Tetrahydrocannabinol inhibits epithelial growth factor-induced lung cancer cell migration

Unbound MEDLINE | Delta(9)-Tetrahydrocannabinol inhibits epithelial growth factor-induced lung cancer cell migration in vitro as well as its growth and metastasis in vivo. Journal article

*THC inhibits epithelial growth factor-induced lung cancer cell growth and metastasis in vivo.
http://marijuana.researchtoday.net/archive/4/7/1212.htm

*Marijuana Ingredients Slow Invasion by Cervical and Lung Cancer Cells
Pot Slows Cancer in Test Tube

*Marijuana May Fight Lung Tumors
Marijuana May Fight Lung Tumors

- Granny

__________________
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Granny's Grandpa- Rev. J. C. Schwabenland

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ah...
LOVE when you do that stormcrow