Sri Bhagavathi Industries: Side Draft Water Wash Type: The fresh air flows from behind the operator; across the component towards the extraction chamber. That is reason, they are known as SIDE DRAFT spray painting booths. The Paint booth is formed of mainly FOUR parts. Firstly, WATER TANK which rests on the floor. On the top of water tank is EXTRACTION CHAMBER. EXHAUST FAN is placed on top of the extraction chamber AIR FLOW IN STANDARD SPRAY PAINTING BOOTH IS SIDEWAYS, i.e. from back of the operator towards the component.