This adsorber has ten (10) v-beds that are each 1" wide. The beds are loaded with nuclear grade charcoal, suitable for use with radio iosdid. The v-bed arrangement provides a minimum residence time of 0.83 seconds at the 500 CFM rated operational flow. The charcoal beds are provided in a very lightweight, but rugged incinerable styrene frame. The unit shown weighs just 88# (with the charcoal filter installed) and is highly maneuverable using the convenient push handle and front swivel wheel.