* DF (HTFC) Serial low-noise fan box is a novel cabinet type fan seifly devel-oped and manufactured by our factory on the basis of digesting and absorbing the advanced technology from the same kind products both at home and abroad. The box adopts the removable structure，The box plate utilizes the superior steel plartefor its bending. It is inner lined with the composite noise blanking materials such as glass cotton, woven glass fabric, punched plate and soon.It has the Characteristics such as low noise, h匆h pressure coeffldent, large discharge facto smooth performance curve, pleasing asspear6-anoe, easy installation etc. It is divided into motor inner mounting (hand outer (B)two forms.

* it is applicable for the Ventilation&scaveng心occasions such as gues thouse, restaurant,auditorium, cinema. factory workshop, office building and so forth.