In 1998, the actiTube founder got the tip from a doctor friend to filter the smoke from the water pipe with activated charcoal in order to reduce the burden on the airways. That same evening, the first attempts were made with an activated charcoal filtered bong. Initially very critical, as he feared the loss of THC, two years later he was completely convinced of the benefits of filtration. So the idea came about to offer all friends of hemp consumption a filter that reduces harmful substances and improves taste.
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