Exhaust Fan Guards

Exhaust fan guards and related duct accessories help finish, protect, and support commercial ventilation installations. This category includes inlet guards that help keep foreign objects out of duct lines, fixed grilles for completing duct openings, and circular duct silencers that help reduce noise traveling through ductwork near fans and bends.

Compare products first by the duct connection size required, with options represented for 4-inch, 6-inch, 8-inch, 12-inch, and 12-3/8-inch circular duct applications. Choose wire-ring inlet guards when the priority is helping block foreign objects at a duct inlet. For a finished opening, consider fixed low-profile exhaust grilles with mounting collars or a paintable contour grille; some grille options include nailing strips, while a 6-inch metal grille offers adjustable gaps and directional air distribution. When duct-borne noise is the concern, select a circular duct silencer sized for the compatible duct run and consider placement directly behind a fan or bend; two silencers can be used together when additional noise reduction is needed.

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