“…Usually, those who work under the protection of respiratory protection devices, in addition to the fact that they carry a device that weighs 14-18 kg, are also subjected to actions of great difficulty, as ensuring their own safety, saving lives, performing fast, urgent and highly qualified activities (insulation of damaged areas, work in flooded areas, transport of materials or injured people through works with reduced profiles, etc.) in severe microclimate (high heat and humidity), toxic environment, smoke etc [6]. Thus, the physical effort put in by rescuers is intense, because of the conditions mentioned above.…”