Filter for immersion cooling apparatus

An immersion cooling system for electronic equipment, wherein heat generated by the electronic equipment immersed in a heat transfer fluid produces a convective flow of the heat transfer fluid, the system comprising:

• a tank to hold the heat transfer fluid in liquid form into which the electronic equipment can be immersed;
• and
• at least one filter assembly, each filter assembly comprising:
• a filter housing through which the convective flow of heat transfer fluid travels and comprising an inlet and an outlet;
• and
• a filter cartridge contained in the filter housing, wherein,
• at least one filter assembly is located within the liquid heat transfer fluid in the tank;
• a cross-sectional area of the filter housing inlet is greater than a cross-sectional area of the filter housing outlet;
• the filter housing inlet is vertically oriented on a side of the filter housing;
• the filter cartridge is positioned within the filter housing at an inclined angle relative to the filter housing inlet;
• and
• the filter housing outlet is disposed adjacent to a top of the housing.