A gas compression system comprising: a compressor having a compressing mechanism; a motor connected to the compressor to drive the compressing mechanism; a housing enclosing the compressor and the motor; and a suction assembly for receiving uncompressed gas from a gas source and conveying the uncompressed gas to the compressor, the suction assembly comprising: a suction pipe in fluid communication with the gas source; means for creating a pressure reduction in the uncompressed gas from the gas source, the means for creating a pressure reduction being in fluid communication with the suction pipe; a compressor inlet configured to receive uncompressed gas from the means for creating a pressure reduction and to provide the uncompressed gas to the compressor; and wherein, the housing comprises an inlet opening in fluid communication with the gas source and an outlet opening in fluid communication with the means for creating a pressure reduction, and the means for creating a pressure reduction draws uncompressed gas from the gas source through the housing to cool the motor and returns the uncompressed gas to the suction assembly, characterized in that the means for creating a pressure reduction comprises a venturi, the venturi including a converging portion and a diverging portion joined by a narrow portion, the narrow portion including a gas return in fluid communication with the outlet opening of the housing, and the diverging portion being in fluid communication with the compressor inlet. a compressor having a compressing mechanism; a motor connected to the compressor to drive the compressing mechanism; a housing enclosing the compressor and the motor; and a suction assembly for receiving uncompressed gas from a gas source and conveying the uncompressed gas to the compressor, the suction assembly comprising: a suction pipe in fluid communication with the gas source; means for creating a pressure reduction in the uncompressed gas from the gas source, the means for creating a pressure reduction being in fluid communication with the suction pipe; a compressor inlet configured to receive uncompressed gas from the means for creating a pressure reduction and to provide the uncompressed gas to the compressor; and wherein, the housing comprises an inlet opening in fluid communication with the gas source and an outlet opening in fluid communication with the means for creating a pressure reduction, and the means for creating a pressure reduction draws uncompressed gas from the gas source through the housing to cool the motor and returns the uncompressed gas to the suction assembly, characterized in that the means for creating a pressure reduction comprises a venturi, the venturi including a converging portion and a diverging portion joined by a narrow portion, the narrow portion including a gas return in fluid communication with the outlet opening of the housing, and the diverging portion being in fluid communication with the compressor inlet. a suction pipe in fluid communication with the gas source; means for creating a pressure reduction in the uncompressed gas from the gas source, the means for creating a pressure reduction being in fluid communication with the suction pipe; a compressor inlet configured to receive uncompressed gas from the means for creating a pressure reduction and to provide the uncompressed gas to the compressor; and wherein, the housing comprises an inlet opening in fluid communication with the gas source and an outlet opening in fluid communication with the means for creating a pressure reduction, and the means for creating a pressure reduction draws uncompressed gas from the gas source through the housing to cool the motor and returns the uncompressed gas to the suction assembly, characterized in that the means for creating a pressure reduction comprises a venturi, the venturi including a converging portion and a diverging portion joined by a narrow portion, the narrow portion including a gas return in fluid communication with the outlet opening of the housing, and the diverging portion being in fluid communication with the compressor inlet.