Laboratory Products

Laboratory & Gold Room Ventilation & Dust-Free Relief Air Systems


MARC Technologies has been involved in advanced extraction system design for many years.

It’s important to understand that laboratory and gold room environments are potentially the most hazardous on a mine site and so need well engineered & balanced extraction and air supply systems.


A few very important notes: 

  1. Fume cupboards and extraction systems in general need air to breathe: Their fans are usually more powerful than smaller extraction system fans like AAS extraction fans, ICP-OES extraction fans, etc. In fact we see outside air being sucked into laboratories in more situations than you would expect – resulting in human exposure (and expensive equipment) to hazardous fume.
  2. Air being pulled out of a lab or gold room via the many extraction systems will need to be replaced: It’s a law of physics – in that process dirt and dust will find its way in which results in contamination, dirty equipment and potential inhalation. What’s the point of having expensive analytical equipment when you’re probably analyzing your site’s dust that’s being sucked into your building?
  3. If allowed to accumulate, the air in a typical mine site lab or gold room is usually extremely carcinogenic due to the presence of aggressive mineral acids: Fresh air introduction is crucial and – for laboratories – is also stipulated in the Australian laboratory design standard AS/NZS 2982! 
  4. There are ways of reducing the amount of air extracted from your lab or gold room: You can reduce the amount of air extracted from your building by as much as 70% by using a few techniques, engineered extraction hoods, etc.  
  5. There are cost-effective ways of filtering the air that is supplied to your lab or gold room: MARC can help you feed clean filtered air into your building in a variety of ways to suit your budget.  We can positively pressurize your lab with self-cleaning filtered air supply systems where you will not have to clean any filters for between 2 and 5 years…maybe more!  Obviously this statement is dependent on site specific conditions.
  6. Not all extraction hoods supplied by equipment OEM’s work effectively: Often the gold room equipment suppliers are not experts in ventilation,unfortunately, and although their extraction systems may appear functional they are often not fit for purpose. 
  7. Blowing vast quantities of clean air into a laboratory or gold room will not mitigate the chemical fume risks:  In most situations these fast moving plumes of air will negatively impact the effectiveness of hoods – pulling fume out of the hoods and into the faces of operators is a typical side effect.  
  8. Address the fume source rather than rely on general room ventilation: Doing this reduces the likelihood of dead spots where hazardous fume can accumulate, and prevents fume from wafting past an operator as it moves.   
  9. The engineering of hazardous process extraction systems is not a single skill:  It combines chemical hazard knowledge, standards knowledge, knowing what suitable extraction equipment is available and/or what can be manufactured as well as best-practice knowledge. 
  10. In Gold Rooms don’t use direct evaporative cooling if you regularly hose down your floor: The water on your floor will not evaporate – resulting in an internal climate similar to an Amazonian Rain Forest. 

Contact us to discuss your needs.