Air purifiers for smoke are used to clean the air of tobacco smoke, but what many do not know, is that not all air purifiers are created equal. Many can not effectively scrub/clean the tiny particles found in cigarette smoke and other forms of air pollution. However, there is a type of air purifier called a ‘Hepa’ that is best suited to cleaning out the very smallest particles found in cigarette and tobacco smoke. The only downfall with most Hepa air purifiers is that they are quite expensive.