|Interesting facts about filters|
Pipe smokers are connoisseurs who attach great importance to high quality in every respect. And not only as far as the pipe and the tobacco is concerned: For approx. 95% of the pipe-smokers the health advantages which only efficient filters can guarantee play an important part. It is precisely this statement which requires clarification.
So how can you realize the efficiency of a filter although you cannot see it? The difference is the following detail: The more activated carbon pieces are in a filter, the longer the “deviations” of the tobacco smoke through the activated carbon pores are (see picture 1). Besides, the filtration is enhanced by the large number of pores of the activated carbon pieces. But if the filter has only a “light” carbon filling, the smoke runs through it almost unhindered.. Of course then its draw resistance is lower, but also its absorbent filter effect. (see picture 2).
Not just any kind of activated carbon is used for the Dr. Pearl junior: Through many years of research, a particularly highly activated carbon of finest quality was developed exclusively for use by VAUEN. Due to a special treatment, the active carbon gets countless pores with different sizes. The filtration is enhanced by the large number of pores. The most favourable degree between small and large pores guarantees the highest retention of the nicotine and tar particles.
A look through the microscope shows the “craters, caverns, and channels” of each activated carbon piece which now have to be passed. A high level of nicotine and tar is retained there.
The longer the “deviations” of the tobacco smoke through the labyrinth of activated carbon, the greater the filter effect. The surface of all activated carbon pieces in one single Dr. Perl junior filter approximately corresponds to the dimensions of two tennis courts. So it’s no wonder that Dr. Perl junior achieves outstanding performance in the matter of filtration. .
The white, non-chlorine bleached filter paper and the white filter cap retain unwanted humidity due to their enormous absorbency. The multitude of holes in the caps provides an equal distribution of the incoming smoke among the activated carbon bits and at the same time the best filtering benefit from carbon and paper.
Continuous quality checks guarantee constantly high filtration values.
For over 70 years, the Dr. Perl junior has provided an ideal balance between maximum filtration and low draw resistance. Treat yourself to maximum enjoyment and use a new filter - the improved Dr. Perl junior System Filter Plus - whenever you refill your pipe with tobacco. It´s the only way to ensure optimal filtering of pipe smoke.
DR. PERL JUNIOR SYSTEM FILTER PLUS - PURE ENJOYMENT