The hookah charcoal filter make at first a well-made impression and fit in most cases directly to the mouthpiece of the hookah hose. The charcoal filters contained many substances, including pollutants that are in the smoke out. Whether it actually happens, however can prove bad. That poses a filter effect of the filter, you can see the fact that you have to pull harder and sometimes smoke with filters is somewhat less. Otherwise, there is nothing to complain about said filter.
