cigarettes in hospitals the 1950s, it was completely normal for to sell cigarettes. Staff pushed carts through the wards offering packs alongside magazines and snacks, and patients could even smoke from their beds 1,300+ Hospital Patients Smoking Stock

A single cigar can contain anywhere from 100 to 200 mg of nicotine, whereas a cigarette typically has around 8 mg of nicotine

Then you have Temperature Control (TC) , which is more like cruise control

The four-stage filter technology that Austin Air Cleaners use to remove air contaminants includes a large particle pre-filter for dust, hair, pet dander, and other large particulate, a medium particle pre-filter for mold, spores, and pollen, up to 15 pounds of activated carbon, and zeolite to remove tobacco and cigarette odors, and 60 square-feet of Certified HEPA to remove 99.97% of all particles larger than 0.3 microns

Cannabis use can have unwanted or unpleasant psychological effects such as: Confusion, drowsiness, or trouble focusing

it's a sign that the lungs' primary defence system has been compromised