Standard Moso Air Purifying Bag 5 "Had to rejuvenate" Mr Keeler 24 November 2016 So when i received this item It did start absorbing odours but not that well. Lasted 30 min and thought this item doesn't seem like its that good. But then i decided to rejuvenate the 2 bags i received and can say they absorb odours insanely well. Even tho it should be ready out of the packet you might want to try rejuvenating the charcoal if you have issues with the new bags. Just thought to give other 'Lakeland' customers a heads up. It works well i just hope it lasts the month it claims before i have to rejuvenate again. Edited: reason spelling mistake and grammar correction/refine.