Advanced Anaesthesia Specialists (AAS) is an internationally recognised innovator and leader in specialist products and technology, providing solutions in veterinary and biomedical anaesthesia and critical care. Founded by board-certified anaesthesia specialist, Dr. Colin Dunlop (formerly Head of Veterinary Anaesthesia at Colorado State University), the AAS team has an extensive background in veterinary anaesthesia, engineering, education, animal safety, and technical services. DarvallVet is the registered trademark for the veterinary anaesthesia products portfolio. DarvallVet products represent the highest quality in veterinary anaesthesia equipment and supplies for its customers; veterinarians, veterinary anaesthesiologists, and research scientists. AAS’s mission is to be a world-leading innovator, designer and manufacturer of premium, quality-assured, intelligent anaesthesia and critical care products and applications. To deliver improved patient outcomes, better economic performance and permit professionals to demonstrate high levels of competence whilst minimising negative environmental impacts.