THE DIY PIECE AKA: a Gravity bong, apple pipe, pumpkin bong, foil pipe, etc
Instead, you should focus on preventative air quality strategies, such as real-time monitoring and early intervention
I was running for a boston qualifying time so I was not in a group/pack during the race so can't comment about how that would be (it could be an issue as there are water runoff ruts all along the course that you might have to run in if you don't have the lateral mobility and forward visibility to stay out of them as you go) I ran with a fuel belt so was not as reliant on the aid stations prior to mile 12, so can't say much about those other than to say there were a lot of people to help pass out fluids and gels
Cigalike refills contain e-liquid, of which the main ingredients are flavourings, propylene glycol and vegetable glycerine
It is native to Americans, and it is thought that Cuban natives were smoking cigars when Columbus founded this country