pressure fan

pressure fan

[′presh·ər ‚fan]
(mining engineering)
A fan that forces fresh air into a mine as distinguished from one that exhausts air from the mine.
References in periodicals archive ?
Remediation included cleaning kitchen surfaces with chemical wipes, and heating and ventilating the kitchen with a negative pressure fan venting outside until air levels of mercury were <0.
Firefighters wearing breathing apparatus helped tackled the blaze and a high pressure fan was used to disperse smoke.
5) Air blower: Discharge machine of middle pressure between pressure fan and compressor.
Crew members wearing full protective equipment ventilated the premises using a Positive Pressure Fan and looked for signs of contamination but couldn't find any.
Kongskilde has developed the Multiair high pressure fan, which is a high efficiency centrifugal blower unit that is housed in a standard modular acoustic cabinet providing excellent noise properties and also full weather protection for most outdoor installations.
Firefighters extinguished the blaze and a pressure fan was used to ventilate the store room, which measures 50ft by 30ft.
A small positive pressure fan was installed and ducted to the tie-in point in the dust collector ductwork.
We isolated the supply and had to use a positive pressure fan to ventilate the property.
There was very little damage to the post office and we used our positive pressure fan to ventilate the building.
Two breathing apparatus, a hose reel and positive pressure fan were used to extinguish the blaze.
They also used a new high- pressure fan to clear the smoke quickly.
Two firefighters using breathing apparatus and a high pressure fan tackled the blaze, which was limited to the bedroom.