Anyone who thinks that 'blowers' and 'health awareness' are mutually exclusive is very mistaken. By using an actiTube activated carbon filter, most contaminants are filtered out of the smoke by activated carbon, and not inhaled. This cools the smoke and gives it a pleasantly mild taste. The bitter taste in the mouth is also largely prevented. With correct use (small strokes) the effect is often experienced as stronger. To ensure maximum filtration, actiTube uses only the highest quality activated carbon in pellet form (no broken carbon) and fills the filters completely (if the filter is poorly filled, the smoke searches for a way around the carbon and the filtration capacity is greatly reduced). The activated carbon used is of vegetable origin. All actiTube filters are produced in Germany.