Saw this rating as I was comparing different cooling fans. I don’t understand this definition at all. Millimeters of Water Column is a low range metric pressure unit derived from the hydrostatic pressure of 1mm head of water at 4 degC. 1 millimeter of water gauge equals 9.80665 pascals.
In: 1
You know how they measure atmospheric pressure in inches if mercury? Well, you can also use millimeters of water instead, for measuring much smaller pressures. In this case, it’s how much pressure the fan can generate.
Latest Answers