Screw compressor

A screw compressor comprising:

• a casing;
• a screw rotor housed in the casing to form a compression mechanism to compress a refrigerant;
• a low-pressure-side bearing arranged in a low-pressure-side region inside the casing and rotatably supporting a drive shaft of the screw rotor;
• and
• a low-pressure-side bearing holder holding the low-pressure-side bearing,
• the casing having a suction port, with an opening of the suction port facing the low-pressure-side bearing holder as viewed along an axial direction,
• a filter member being attached to the suction port to filter out contaminants contained in the refrigerant being sucked into the casing, and
• the filter member having a mesh filter body having a cylindrical shape with a bottom, a peripheral portion of the filter member adjacent to an opening thereof being fixed to the suction port, a mesh portion at the bottom of the filter member being fixed to the low-pressure-side bearing holder, and the filter member being positioned such that the bottom of the filter body overlaps with the drive shaft as viewed in an axial direction of the drive shaft.