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.
In 1925, Hungarian inventor Boris Aivaz patented the process of making a cigarette filter from crepe paper. From 1935, a British company began to develop a machine that made cigarettes incorporating the tipped filter.