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.
air filter - a filter that removes dust from the air that passes through it. air cleaner. filter - device that removes something from whatever passes through it. filter tip - an air filter on the end of a cigarette; contains material that filters the smoke. ventilator - a device (such as a fan) that introduces fresh air or expels foul air.