MasterCard, Visa and American Express are promoting contactless versions of their credit cards, which only need to be held near a special reader at the checkout counter for a sale to go through, making the standard card swiper no longer necessary.
Filters in a new and used cigarette. Cigarette filters are an essential non-tobacco part of a filter cigarette, and have a profound effect on the yield and composition of cigarette smoke. The filter may be made from cellulose acetate fibre, paper or activated charcoal.
Cigarette tar is a term used to describe the toxic chemical particles left behind by burning cigarettes. This substance forms a tacky brown or yellow residue. It is not the same as tar used on road surfaces. The tar in cigarette smoke paralyzes and can eventually kill cilia as it is inhaled into the lungs.