You set the desired pressure and it quits inflating when it reaches that pressure
Carcinogen biomarkers in the urine of electronic cigarette users and implications for the development of bladder cancer: a systematic review
Ldicke F, Picavet P, Baker G, Haziza C, Poux V, Lama N, Weitkunat R (2018) Effects of switching to the tobacco heating system 2.2 menthol, smoking abstinence, or continued cigarette smoking on biomarkers of exposure: a randomized, controlled, open-label, multicenter study in sequential confinement and ambulatory settings (Part 1)
You can use vinegar in a ratio of 1 cup of vinegar to 3 cups of warm water, left overnight to remove cigarette smoke odors in air-conditioned rooms
DeYoung, M.P., Horak, P., Sofer, A., Sgroi, D