1. Dust bag type
The working principle of the dust bag type is very simple: the motor runs to draw air out, 1. A dust bag is used in the front to collect dirt; 2. A filter cotton is added in the middle to protect the motor; The air to the room is free of dust. The advantage of this method is that it is free of cleaning. After the dust bag is full, even the bag is thrown away to ensure that other parts of the machine are clean. You only need to clean the dust bag. It is very convenient and the dust bag is not expensive. 30 a bar. Can be used for a month or two.
2. Vacuum type
The vacuum cleaner uses aerodynamic power to make the dust and dirt circulate in the dust bucket to achieve the purpose of temporary preservation. This method is very clever, eliminating the resistance of the dust bag and making the suction efficiency higher.
Although most of the dust is swirling in the barrel, some will be sucked to the rear, so in the vacuum type machine, there are many layers of filters used to protect the motor (one layer is not enough, it is too dangerous to directly contact the dust) . Behind the motor, a filter cotton will also be added to ensure that the air blown out is clean enough.
3. Roller head, straight suction head
This is not the main body of the machine, but the difference between the suction heads. Generally, the suction heads that suck the floor like to use the drum type. There is a motor in the drum. When the machine is turned on, the drum rotates, and everything that rolls can be sucked in. Of course, the one that cannot be rolled can be sucked in. , even if it is very close, it can't be sucked in. There are advantages and disadvantages.