Environmentally-friendly alternatives to organometallic antifoulants that are efficacious at preventing biofouling by organisms such as the zebra mussel. More particularly, the disclosure relates to medical devices, systems, and methods for the visualization and treatment of bodily passages, such as an airway, sinus cavity, or sinus passages. The announcer signal includes a network identifier, an authorizer address and a verifier address. Then, when determining that the detection teamplayer lost in the game, a scheme is to prevent the already recorded data of the broadcast program of the game from remaining on the hard disk. The grip surface is formed on a separate piece from the housing and is affixed to the housing by an integrally formed fastening device and the assembly comprising the housing, grill, grip surface, latch and connector can be assembled by hand without the use of separate fasteners.