5 Blade Ceiling Fan With Light

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FAQ

How do you use an electric fan to set up an air distribution system in an air tight room?
In the absence of outdoor airflow, the warm air is lighter than the cold air. From a hydrostatic point of view, the temperature difference brings air stratification in the vertical direction
What are the new electric fans?
Electric fan: this kind of electric fan which can be installed on the bulb of the bulb of the United States invented by the United States. It is small and exquisite. As long as the lamp holder of the bulb is installed, it is not only easy to install, but also saves energy.
What are your misunderstanding blowing ?
Many people like to blow fans for a long time. They feel like they've just cooled off, and they're going to feel like they're still hot. It's not as good as blowing comfortably for a long time. However, a long time to the fan blowing, the body temperature will decrease with the evaporation of large amounts of sweat, easily lead to colds, colds, abdominal pain, diarrhea and other diseases. Generally, it takes half an hour to 1 hours for a hair dryer.
Where does the fan drip the oil?
To cheer for as long as the front axle and add a few points on the line, but to the correct way, the vertical axis, the oil in the bearings, give it a free fall, can get into the bearing, with hand up and down, make the oil more fast forward to the inside, repeated several times, will be able to solve the problem
Why does the fan seem to spin backwards when it spins?
This is the reason that the wheel looks stationary, when the frequency of the fan's rotation is related to the maximum frequency that the human eye can tell.
Why does the electric fan always rotate clockwise?
The fan blade of a conventional fan has a tilt angle (the steering is designed from the angle of the tilt angle). The motor causes the fan to rotate and the space-time is compressed, causing air flow (resulting in wind). The direction of flow is related to the direction of the fan's rotation and the inclination of the fan blade.
Why do most fans only have 3 blades?
The fan family use is generally 3 blades, the blade shape is a bird type (design terminology), this form of blade flow, low noise, in accordance with the principle of fluid mechanics, the three leaf has a good dynamic balance, not easy to produce oscillations, thereby reducing the abrasion of the bearings. Extend the service life and reduce the maintenance cost.
Why can an electric fan choose only 123 winds, and this discrete value instead of zero to three continuous type?
Because, for example, Class 1.5, the volume of air can be settled by the distance between the fan and the person.