On the inside however, your work might be in a constricted area and the vapor concentration could become dangerous. Smoking increases this effect. Besides, it may cause an explosion. Do not smoke. Contact with liquid coating may cause serious skin irritations.
Proper ventilation is essential.
When using this ventilation be careful not to blow vapors on other employees. Always use a chemical cartridge respirator for organic vapors. See that it fit properly. If you smell vapor, change the cartridge. In addition, wear the proper protective clothing.