Though possessing less power than a normal Weezing, this Pokémon carries itself with a more chipper demeanor as well. It's theorized this is because the fusion resulted in less gas within it, causing less internal pressure.
By diluting its toxic gases with a special process, the highest grade of perfume can be extracted. Getting up close to a Koffzing will give you a chance to observe, through its thin skin, the toxic gases swirling inside.