when did filter cigarettes first appear in australia
Cigarette filter
A cigarette filter is a component of a cigarette , along with cigarette paper , capsules and adhesives . The filter may be made from cellulose acetate fibre , paper or activated charcoal ( either as a cavity filter or embedded into the cellulose acetate ) . Macroporous phenol - formaldehyde resins and asbestos have also been used in cigarette filters . The acetate and paper modify the particulate smoke phase by particle retention ( filtration ) , and finely divided carbon modifies the gaseous phase ( adsorption ) . Filters can reduce `` tar '' and nicotine smoke yields up to 50 % , with a greater removal rate for other classes of compounds ( e.g. , phenols ) , but are ineffective in filtering toxins such as carbon monoxide . Most factory - made cigarettes are equipped with a filter ; those who roll their own can buy them from a tobacconist .
A cigarette filter is a component of a cigarette , along with cigarette paper , capsules and adhesives . The filter may be made from cellulose acetate fibre , paper or activated charcoal ( either as a cavity filter or embedded into the cellulose acetate ) . Macroporous phenol - formaldehyde resins and asbestos have also been used in cigarette filters . The acetate and paper modify the particulate smoke phase by particle retention ( filtration ) , and finely divided carbon modifies the gaseous phase ( adsorption ) . Filters can reduce `` tar '' and nicotine smoke yields up to 50 % , with a greater removal rate for other classes of compounds ( e.g. , phenols ) , but are ineffective in filtering toxins such as carbon monoxide . Most factory - made cigarettes are equipped with a filter ; those who roll their own can buy them from a tobacconist .