Although not as common as they once were, air pressure systems do still exist, so you should prepare yourself for when you encounter one. More reliable plant designs are now readily available for OSP ...

Just minutes after arriving at fruit packer Venida Packing to bid on retrofit HVAC ventilation work, mechanical contractor Jonathan Chapman knew what his recommendation for air distribution would ...

One reason: lower static air pressure means much less air mixing compared with ... It is also the case that, with the exception of total gut renovation projects, underfloor air distribution systems ...