"While non-filter cigarettes currently represent no more than 1% of cigarette sales in the US and UK, they still comprise about 20% of cigarettes sold in China, 15% in France and 6-20% in Eastern ...

But no evidence exists that these cigarettes are significantly less dangerous for the user. Most filter cigarettes also bear ventilation holes punched around the circumference of the filter tip.

PITTSBURGH, March 20, 2025 /PRNewswire/ -- "I wanted to create a way to filter out tar and other toxins and carcinogens from smoke before it was inhaled," said an inventor, from Rochester Hills ...