If incident frequency were taken into account, smoke hoods with effective VOC filters should be at every seat - more so than life vests! I used to travel with an evac-u8 smoke hood (both when flying as pax commercially and crew on small aircraft). But they got recalled in 2006 for not providing effective CO protection. I never found a viable alternative. Probably something that should be looked into, considering the extreme health hazard imposed by vaporised lubricants.