Fusion was blended with a patented odor neutralizer, Ordenone, that encapsulates malodor molecules and eliminates odors at the source. 3200 sprays lasts for 30 days and can deodorize a room up to 6000 cubic feet. Smells stronger, longer. Fusion's smaller particle size will float in the air longer so you smell it longer. No messy build up on surfaces. VOC compliant.