18 year-old developed serious respiratory failure after vaping for a few weeks

https://www.cnn.com/2018/05/17/health/case-study-teen-vaping-wet-lung/index.html

She was unable to get enough oxygen into her blood from her lungs and required a mechanical ventilator (respirator) to breathe for her until her lungs recovered.

Not only did the hostess require a breathing machine, she needed tubes inserted on both sides of her chest to drain fluid from her lungs.