I toked for 40 years and my lungs were a mess- morning cough, "lung oysters", the whole 9 yards! it took only 2 weeks of vaping for them to get clear. Your friends are wrong about vaping being as bad for your lungs as smoking. Here are some studies for you to share with them.

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: "Donā??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

Educate them! - Granny:hippy:
Storm Crow Reviewed by Storm Crow on . In desperate need of help! Advice needed.. Hey, I'm Brandon. I recently had a surgery done on my lungs that removed part of my lungs because I had "blebs"(blisters of the lung) that kept popping and causing my left lung to collapse. I had "VATS" surgery done on a tiny part of the top of my lungs to remove the infected blisters. I had two chest tubes in me for two weeks connected to my lungs to reinflate them. The surgery went well and my lungs are now recovered. The doctor said it wouldn't be wise to start smoking anything again, but he Rating: 5