1. Substandard gas gives rise to the damage of pneumatic element, which increase much cost for purchasing spare and accessory parts.
2. The damage of accessory parts cause the high maintenance cost.
3. The damage of accessory parts aggravates the strike-locked, increase the production cost.
4. The working life of principal part is shorter as the influence of more water-containing, up the investment cost.
5. The industries directly contacted to compressed air, have poor products as the worse gas quality.
6. The substandard flowrate generates other invisible or concrete cost.