the sandlot chewing tobacco The Sandlot 1993 Carnival scene

For instance, smoking increases the risk of bladder cancer (BC) and renal cell cancer (RCC), with current smokers having a pooled relative risk of 3.47 for BC incidence and 1.36 for RCC incidence

Later lighters use liquefied butane gas as fuel, with a valved orifice that allows gas to escape at a controlled rate when the lighter is used

If you just inhale a small amount, it's not a concern

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The best I can say is *if* you have power over where the intake is, either move it or add a filter to it of some sort