The booths detailed here provide protection to both operator and the environment by extracting the light airborne dusts which are a health hazard and which travel on ambient draughts. Heavier trimmings and tramp dust are contained within the booth and can be swept up in the usual way, improving shop cleanliness.

Large work is normally trimmed on the floor, Intermediate work can be trimmed on stools or trestles and the smallest work can be accommodated by a bench, often with a vice, placed in the booth.

All booths, whether 1.8, 2.8, or 3.6 metres wide, are constructed with recessed tops and are only 1.2 metres high. This ensures that the operator can only work on the clean air side of the booth.

Exhausts units located at the rear maintain statutory exhaust rates.

Lakestyle down draught benches have decking tops through which the air is drawn downwards, providing positive control of trimming dust. The decking is usually made of reversible aluminium strips, serrated on one side for workgripping and smooth on the reverse for more delicate workpieces. Steel or hardwood decking is available as an option. Down draught benches can be of light or heavy duty construction, according to the type of application. They are made in three standard widths, 1.2, 1.5 or 1.8 metres. The interior sides and canopy top are finished in white gloss and all benches are fitted with fluorescent lighting. Noise absorbent linings can be fitted if required.

Wet dust exhaust units are essential to cope with the heavy burden of flammable dust arising from GRP trimming.

Wet dust exhaust units draw the dust-laden air through a tank of water. Heavy dust particles are thrown directly into water and settle as sludge in the base of the unit for subsequent removal. Air and light dust are drawn over the surface of the water and scrubbing cups turn the air and entrained water, wetting even the very fine dust particles. A series of baffles removes the wetted dust and clean air is discharged from the top of the unit back into the works atmosphere.

There are no moving parts, no filters and no sprays, which means that the units are particularly robust and maintain their original suction rates, even under very arduous conditions.