Hi thanks for asking question.
Here are few possibility in your case.
1.First most probably you have chemical 
laryngitis, rhinitis or cold like condition.For that for few days take semi solid diet with more water and fruit juices.avoid smoking .Treat symptomatically like antihistaminic or decongestant can be used.
2.Second you might have chemcal 
pneumonitis like condition if you have associated fever.Then prophylactic antibiotic may needed.
3.The chemical might affect your 
bronchus and 
bronchitis may present.Treat it symptomatically with avoidence of smoking.
For above two diagnosis chest x ray can be useful.
Spirometry examination also will be helpful in distinguish between restrictive and obstructive condition.
I hope my suggestion will helpful to you.
You will recover within few days .don't think about die at all.
From next time wear protect covering while doing such work.
Dr.parth