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This variation between studies may be due to the different puff routines used to generate the tobacco smoke (HCI vs ISO), aging of smoke particles over the puff routine (4 vs 8 mins) and dilution ratios in the smoke bags (75 vs 33)
And in case youre wondering how to puff without inhaling, make sure you dont draw in air from your diaphragm, instead, draw in air like your drinking from a straw with shallow breaths
There is always light at the end of the tunnel
The researchers believe ozone levels will continue to rise unless more steps are taken to reduce fossil fuel emissions and curb climate change
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