if they were the same thing, The're wouldnt be two names. I know for sure that activated charcoal will eliminate odors better than pretty much anything. A good air filter is a defender 360 by filter queen. its a 1000.00 bucks but its the best. 3 times more filtration than a hepa filter, with a activated charcoal filter wraped around it. lifetime warranty, change filter 1 or 2 times a year