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Description
A well-known, highly studied, and widely confirmed fact: Cigarette smoke is destructive

doi: 10.1007/s10654-010-9452-6

Add the health warning space regulators mandate (30% to 50% or more of the front and back panels, depending on the country,) and you get a spec sheet that bears little resemblance to the simple number most people think is the whole story
Personally, switching back between the card and Bluetooth is a little tricky, and my advice is to pick one or the other and stick with it
