Due to the fine nature of the particles, cigarette smoke odor is often very difficult to remove from fabrics, upholstery, and carpets
One Canadian recovery center, in explaining why it doesnt ban smoking, acknowledged the hypocrisy in calling itself abstinence-based, but justified it by saying its clients might not comply, leading to worse problems, such as leaving the rehab property to sneak a smoke or failing at rehab because they believewrongly, but try telling clients thatthat they cant quit drugs or alcohol at the same time as nicotine
References & Resources Adler, David A, and Susanna Natti
In devices with multiple filters, you can change the single filter against smoke pollution separately
The primary goal was to provide smokers with the nicotine delivery they craved without the harmful tar and other carcinogens found in combusted tobacco