Cigarette smoke can linger on your breath for several hours, typically around 30 minutes to a few hours, depending on factors like the amount smoked, individual metabolism, and oral hygiene. The smell is caused by the tar and chemicals in cigarettes, which can cling to the mouth and throat. Brushing your teeth, using mouthwash, or Chewing Gum can help reduce the odor more quickly.
No, as long as you stay calm then you don't have to hold your breath.
It can stay your system for up to 30 days after your last smoke.
it will stay in there for about 2 years
5 minutes
no, but they can stay underwater for a long time
About 2 months
Depends on the size of the particles.
30 minutes.
Generally until you wash them.
To be safe, one month.
Not very long. Neptune is made of Hydrogen and helium. So you can't breath.
The alcohol contained in exhaled breath would be gone within an hour and one-half.