As buildings have become “greener”, heating and cooling efficiency have greatly improved. However, this increased building tightness can have a negative impact on the indoor air quality of the building if the HVAC system isn’t pulling in enough outside air. How can you be sure that the occupants of a building are getting enough fresh air? The calculation is actually really simple. ASHRAE Standard 62 lists the recommended volume of…
A fume hood is a local ventilation device designed to eliminate or minimize exposure to hazardous fumes, dust or other airborne particulates. Basically, the fume hood provides an area where a technician can safely work with certain hazardous materials. The fume hood is designed to contain and vent all dangerous vapors and particulates away from the worker. A typical fume hood will undergo quality testing by the manufacturer, but it…
