Ruskin concentric diffusers are designed to provide supply and exhaust connections in one assembly. Model CDF flush mount and CDS side discharge units are available in 600 to 13,000 CFM, with a plenum box. Specialty diffusers are designed to provide single point supply air distribution with long throws, ideal for open ceiling applications. DLD drum louver and SOD double deflection diffusers feature aluminum construction and optional duct cap with hanging supports.

Ruskin's IAD Series of industrial air curtains (shown below) provide coverage over wide and tall openings against air conditioned air loss, insect control, and particulates. Typical applications include manufacturing plants, warehouses, processing plants, hospitals, and transportation facilities. IAD units are avaialable in 5,  6, 7, and 9-ft. lengths that may be combined up to three-wide assemblies, to cover openings up to 21-ft. in width.

Optional electric heat is avaiable.