Breathing its vapors at >15% concentration is often fatal; most commercially available handheld containers contain 30% per volume of concentrated vapors that naturally disperse in the outside air.

If exposed to concentrations higher than 6% to 8% victims often exhibit shallow breathing, loss of consciousnesses, and depressed heart-rate. They can be roused with physical contact or loud noise. At this point removal from the area of exposure is advised to restore consciousness. The long-term effects of exposure over a period of 4 or more