This second edition has been completely reformatted and re-edited to provide you with a familiar, yet new learning experience. If you have the original Vent Hero textbook, this will further enrich your understanding with NEW artwork, figures, and most importantly, practice problems. If you have never read Vent Hero before, then get this version! Our goal is to help you hon your expertise of the mechanical ventilator, and then allow you to practice this expertise. All practice problems come with complete explanations. The original Vent Hero's mission was to present a unique approach to mechanical ventilation using current science and medical literature. This textbook continues that mission by bringing new knowledge and teaching modalities to the learner. Through a systematic approach, my methods will train you to apply and maintain mechanical ventilation in any setting, although it is geared towards the critical care and transport environments. Let's tame this beast together.