I highly doubt it, but go ahead and prove your claim.

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.

Speaking as an ex-smoker who didn’t match the caricature

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.