A small-animal inhalation chamber for short-to-intermediate term exposure

An inhalation chamber for behavioral toxicology studies is described. Complete and uniform diffusion of test atmospheres throughout the chamber is achieved, thus solving a dead-airspace problem prevalent in extant chamber designs. Modular attachments to the chamber allow for a variety of uses, including physiological-pathological and classical or operant conditioning. The chamber design and size are appropriate for testing most small laboratory animals (e.g., birds, rodents, and small primates), but the chamber is easily modified for use with larger vertebrates. Despite the versatility of design, the chamber is relatively inexpensive and easy to build.