For the hotel, tea house, coffee bar, chess room, Kara OK hall ventilation and other high places, it is inappropriate to a conventional fan.
　　First of all, for a small room ventilation, the ventilation pipe to connect central ventilation pipe room, you can take into account the noise on the basis of appearance, select FZY series of small axial flow fan, its small size, plastic or aluminum appearance, low noise and high air volume co-exist .
　　Second, the right amount of wind and noise require more rigorous point of view, the wind box is the best option. Within the silencer box, cotton, add a central ventilation ducts can be achieved after the significant effect of noise reduction.
　　Finally, to add, for the indoor gym hair, be sure to select the wind amount of FS-type industrial fans, rather than the SF-type positions axial fan. This was the appearance and safety considerations.