I've also done some things that have taken some years off my cardiovascular's original warranty period. I'm ok with it, because I'm am absolutely sure it was worth it. Just one example is sitting here by this toasty stove right now, apparently. Plus, lingering around for too long at the end is no fun, for anyone.I get a noticeable amount of ash settling around the room after a cleanout even if I run a filtered fan while I'm doing it.
I don't doubt that a lifetime of getting wood and burning it has taken a few years off my lungs' expiration date. I'm in favor of the skulls and crossbones sticker for new stoves, and also I'd like them to send me one or two to put on my old stove. (And about 30 for my ring of rocks that I burn brush and toast marshmallows in, that one is extra hazardous to your lungs.)