Ventilation The principle is straightforward - exhaust the toxic gases and replace with clean air. In practice it requires thought - where is the best place to catch those fumes and where does the replacement air come from? The very best ventilation is when the gases are removed as quickly as possible, without being inhaled and sufficient fresh air is available. Ventilation set ups are varied and most forums have several discussions on which is best.
The concept of proper ventilation © Dale Meisenheimer 2004-2015
Window A proportion of ‘make-up’ air can come in through a window
Breathing zone (fresh air)
Option to exhaust straight out of the roof
Minimum 300-600 CFM vent hood Contaminated air zone
Fresh make-up air Make-up air volume must, at least, match volume of contaminated air the exhaust is pulling from the room. Fresh air inlet should be at least 10 feet away from the exhaust vent.
brought in from outside up through the bench
The ‘Barley’ Box Created and designed by Michael Barley, this ventilation set up contains both the exhaust and air inlets in the same area to make it a more efficient system. Heather Kelly constructs her own Barley Box from scratch. Perspex containing screen Colette Ladley’s studio
Vent in the roof
Two air inlets