... -filter,effectively prolong the Ilifetime of consumables and reduce lots of maintenance.,Air QualityIncrease surplus of cooling system,exhaust temperature can ... ,unit operation is clear at a glancewith the allocation of manometer,air filter element contamination indicators,purge nozzle,cooler ... 40°C). The letter “W”is added behind the power value of Model No. to indicate Water-cooling style, i.e.: ...