A ceiling-hung extraction arm in white, with three knurled black lock knobs at the joints. Each knob tightens the joint it belongs to, so the arm can be set once for a bench position and then re-set by hand when the work moves. The base is a ceiling drop with a side outlet, and the free end carries a wide dome hood that sits over the fume source.
Three locking joint knobs — each joint has its own black knurled knob, so a joint can be set stiff or slack independently instead of all three relying on one tension setting.
White chemical-resistant body — a white moulded arm that matches the bench and ceiling finishes common in laboratories, with no painted metal parts on show.
Wide dome capture hood — a bell-shaped hood at the free end, wide enough to sit over a beaker, a bath or a joint being worked on.
Ceiling drop with side outlet — the vertical section ends in a canopy at the ceiling and takes the exhaust away through a side spigot, which suits ceilings where the duct cannot rise straight up.
Three articulation points — two mid joints plus a bend at the hood let the arm fold flat against the ceiling when not in use.
Bolted ceiling canopy — the top canopy is a separate part fixed to the soffit, with the arm hanging from it.
Modular sections — the arm is built from straight tube sections between the joints, so a damaged section can be replaced without scrapping the whole arm.
No power required — a passive arm with no motors and no electronics; the only routine work is checking the joint knobs.
| Type | Ceiling mounted universal fume extraction arm |
| Colour | White |
| Body | White moulded arm sections with white joint housings |
| Joints | Three articulation points with black manual lock knobs |
| Capture hood | Wide dome hood at the free end |
| Ceiling connection | Ceiling canopy with side exhaust outlet |
| Mounting | Ceiling mounted, bolted canopy |
| Services | Passive, no power or controls |
Laboratory benches, sample preparation areas, soldering and electronics stations, and small chemical handling points where a fixed fume cupboard is too large and the extraction point has to be swung over the work and then folded away.