This is not the only way or necessarily the best, it is however a simple option Be Sure there is a good seal around the entire door
Arch Bronconeumol 47(12):584589 Peh HY, Tan WSD, Chan TK, Pow CW, Foster PS, Wong WSF (2017) Vitamin E isoform -tocotrienol protects against emphysema in cigarette smoke-induced COPD
Centre for Behavioural Research and Program Evaluation, National Cancer Institute of Canada/Canadian Cancer Society
At the same time, for smokers who accept the risks associated with smoking, do not wish to quit, and who are not concerned with decreasing their exposure to nicotine, our company has created low tar-to-nicotine cigarettes like Moonlight to deliver nicotine more efficiently than conventional cigarettes with a reduced exposure to the smoke and tar. 22nd Century has also developed its Brand A cigarettes, currently waiting for FDA approval
A major analysis published recently provides strong evidence that people using e-cigarettes have a higher success rate in quitting smoking compared to those trying other methods