Advanced Anesthesia Specialists (AAS), LLC is an international innovator in the design and manufacture of solutions for longstanding problems in veterinary anesthesia and critical care. AAS has developed the Darvall brand of veterinary anesthesia equipment and supplies, including warming blankets, heated and non-heated breathing circuits, zero dead space (ZDS) breathing masks, and veterinary laryngoscopes. Darvall veterinary products represent the highest quality in veterinary anesthesia equipment and supplies for veterinarians, veterinary anesthesiologists, and research scientists. AAS also provides technical services, expertise, and continuing education for veterinarians around the world. Founded by Dr. Colin Dunlop (formerly Head of Veterinary Anesthesia at Colorado State University) the Advanced Anesthesia Specialists team members have extensive backgrounds in veterinary anesthesia, engineering, animal safety, and technical services.
