Yep unlike cotton or other filter medium the lungs do not catch all the crud in the smoke.Didn't some asshat scientist with a huge government (IE our tax dollars) grant do a similar "experiment to prove vaping was "as bad as smoking?"
Notice there is no exhale and the cigarette is sucked down to the filter
Not that I'm defending smoking, but I hate these shoddy demos
Reminds me of the lamo "object lessons" crammed down my throat during Sunday school in the 1960s