Live and learn as a proverb runs.
Recently one of my students has told me a captivating fact. As it turns out, in case of decompression, before donning an oxygen mask, a woman needs to wipe her lipstick off. Otherwise, when it contacts with the oxygen, it may cause a burn.
Indeed..
Petroleum is found in products such as petroleum jelly and certain other ointments, creams, and lotions, as well as sunscreen and even lipstick and lip balm. There are theoretical concerns that it could be flammable in the presence of the heat source and oxygen. For this reason, some websites recommend using only water-based products for moisturizing nasal passages and lips.
