We believe that by using separate systems to ventilate the smoking lounges and the concourse we're creating a second layer of protection from second-hand smoke." But ventilation systems do not eliminate the hazards of second-hand smoke, a 2006 Surgeon General's report found, leading public health advocacy groups to support a zero tolerance policy
Irritation: Smoke irritates the lining of your lungs, leading to inflammation and coughing
Leaf Group Ltd./Leaf Group Lifestyle, 27 July 2017
[23] If they fail to do so, or if the plans do not appropriately address this issue, the US FDA will consider whether it would be appropriate to revisit the current policy that results in these products remaining on the market without a marketing order from the agency
Some symptoms to be aware of would be: Gums starting to pull away from teeth White pus coming from gums Extremely bad breath Red, swollen, tender, bleeding gums Mouth cancer Smoking causes cancer