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压风机的成本较高，耗电量大（国有重点煤矿仅次于水泵和通风机占第三位），利用率低（多数矿井，除运行外，最少有一台备用。像汾西矿务局利用率只有59％，如果每班运行时间按5h计算，实际利用率只不过37％），效率不高（多次试验证明，很多历风机都是在排气量不足的情况下工
Compressor costs are high and power consumption is large (State-owned key coal mines only take the third place behind pumps and ventilators), and the utilization rate is low (most mines have at least one spare except for operation. The utilization rate is only 59%, if the operation time per class by 5h calculation, the actual utilization rate of only 37%), efficiency is not high (many tests show that many calendar fans are in the case of insufficient displacement