Air ventilation purifier and ventilation filtering technical method
A filter technology and purifier technology, which is applied in the field of air ventilation purifiers and ventilation filtration, can solve the problems of unsightly appearance, indoor air indicators not up to standard, and outdoor noise entering into the room, etc.
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[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0018] Such as figure 1 As shown, the structure of the air intake device of the air purifier of the present invention includes a preliminary filter screen 1 fixed on one end of the air intake pipe 2 at the outdoor 12, the air intake pipe 2 is installed in the isolation body or wall 11, and the other end of the air intake pipe 2 In 13 indoors, connect the external circulation air inlet 4 of U-shaped filter cartridge 6, and there are 3 air internal and external circulation switching valves and 5 internal circulation air inlets beside the external circulation air intake 4 to carry out the internal and external conversion of air. A U-shaped filter element 7 is installed in the filter cartridge 6, and the inner end of the upper mouth of the U-shaped filter cartridge 6 is sealed and connected with the outer end of the upper mouth of the U-s...
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