HEACE aims to achieve a better understanding of the health and comfort impact of the working environment inside aircraft on the crew. This understanding will be translated into improvements, to be promoted by defining appropriate schemes and measures (e.g. improved guidelines) for aircraft design. European manufacturers will thus be provided with clearer concepts and assessment tools with respect to the cabin/cockpit environment, in order to increase the “friendliness” of this workplace. This will mean direct benefits in relation to health and comfort, achieved by improving the overall quality of the cabin environment for crew and passengers. In addition, indirect benefits are expected through reduction of errors due to poor environments, thus supporting the safety of passengers and crew in this important means of transportation.