There is disclosed a conduit inspection apparatus of a type adapted to be located within and transported along a conduit such as a duct, and a method of inspecting a conduit. In one embodiment, the conduit inspection apparatus (10) comprises a body (18) adapted for location within a conduit such as a duct (14), a centralisation assembly (16) for centralising the body (18) within the duct (14), a transportation assembly (20) for transporting the body (18) along the duct (14), and a data coupling (24) for data communication between the body (18) and a control station (22). In a preferred embodiment, the apparatus (10) includes a fluid applicator (78a) for supplying a fluid to a surface of the duct (14), the fluid applicator (78a) including a rotary member in the form of an atomiser (166) for imparting a force on the fluid to direct the fluid towards a surface of the duct (14).