Exhaust Fan product buying tips

Customers who bought "Exhaust Fan" trick ventilation and indoor use, kitchen and bathroom with three.
1 toilet generally smaller, about 2-4 meters, the choice of 150-200 mm open-ventilation fans.
2, kitchen optional 250 mm unscreened formula "Exhaust Fan", such as when the kitchen is equipped with off the hood, do not install ventilation fans.
3, bedroom and living room area is generally about 12-16 square meters, two-way type ventilation fans 250-300 mm more appropriate.
Selection, pay attention to the following points:
1, fan new appearance, color and color coordination room, flat without warping phenomenon, smooth plastic parts, plating bright, no rust marks, blades can rotate.
2, "Exhaust Fan" after power blades rotate smoothly without abnormal noises, air volume. Blinds one hundred boast flexible movable. Even acting one hundred window 100 surface rotation sensitive. Bi-directional ventilator converted with ease. Motor temperature too high, small noise. Fan speed control with speed control function is obvious, capacitor motor is not more than 65%, the cover plate is not more than 80%.