NKG's excellent design is based on fluid dynamics and the optimum balance between the casing and the impeller to produces a smooth air flow. As a result of the optimum balance between the casing and the impeller, our Power Saving fans achieve a maximum efficiency of 88%. We are proud to say that this puts us in the top class for efficiency in the industry all over the world This high efficiency enables you to achieve a reduction of about 10 to 30% of electric power consumption by replacing your existing fan with one of NKG’s FANs. This reason is that NKG’s excellent design is based on fluid dynamics to produces a smooth air flow. Consequently, compared to general fans, they consume less electricity for the same flow volume and pressure. As a result, you can save running cost. Also, noise and vibration can be decreased.