There are sick men and women who require a breathing machine, so they use air evacuation companies. Whats more , airevac establishments frequently are used precisely because they are dependent on a medical staff. People have need of a paramedic , or advanced cardiac life support …. and these are the cases who can not fly everyday commercial airline outfit. Quite frequently there are medivac services that can help families anywhere in the globe. Medical flight crews are looked up by customers with the yellowpages.