The filtration system consists of the fabric pre-filter to catch large particles, the main HEPA filter for pollen, pet dander, and other allergens, and also the activated carbon layer for smoking, cooking, and other odors
For comparison purposes, to present the exposure scale, the same analyses were also performed for several traditional cigarettes
"Cigarettes butts and the case for an environmental policy on hazardous cigarette waste"
The evidence prompted the WHO to conclude: Tobacco companies and their public relations firms have always insisted that advertising does not cause non-smokers to take up the habit, but is intended to get those already smoking to switch brands
Health advocates said while they regretted that possibility peoples health was more important