Smoking with a filter has no health benefits. Statistically, there are even more illnesses with people that smoke with filter cause they on average smoke more cause it irritates the throat less.
Our local cancer NGO even lobbied to ban filtered sigarettes as they cause more smoking and are plastic litter.
I would turn that around cause you are claiming filters help prevent cancer. Producers should prove that, but they don’t. Filters don’t help.
Good for you, but you are in the minority. I know no one that smokes that carry around a portable ashtray. If there is none in a couple of meters, they get thrown on the ground.