Ventilation device and wall body

Abstract

The invention discloses a ventilation device and a wall body. The ventilation device is provided with a frame and a ventilation unit which is arranged in the frame, wherein the ventilation unit comprises a filtering fan, a gauze element and transparent filtering blades; the filtering fan is positioned on the innermost side of the ventilation unit; the gauze element is positioned outside the filtering fan; the transparent filtering blades are positioned outside the gauze element; and clearances are reserved among the filtering fan, the gauze element and the transparent filtering blades. The ventilation device and the wall body utilize the wind pressure caused by the density difference of air inside and outside a building or the wind pressure caused by the outdoor atmospheric motion to introduce outdoor fresh air so as to realize ventilation and air exchange functions, so that the natural ventilation of indoor air is realized, and the mechanical power is not required to be consumed; a filtration system is arranged, and dust, sandy soil, strong wind, splashes, peculiar smell, toxic gas, flying insects and the like are prevented from entering the ventilation device by purifying the air; and the fresh air is aerated into a room, so that the secondary pollution to the room is avoided.

Description

technical field [0001] The invention relates to the field of building materials, more specifically, to a ventilation device and a wall. Background technique [0002] With the progress of society and the development of economy, people have higher and higher requirements for ecological environment and air quality. Human life includes indoor air and outdoor air. Indoor air pollutants mainly include: smoke, lampblack, cigarette smoke, carbon dioxide exhaled by the human body, and dust (the most dangerous particles in dust are 10 μm and 2.5 μm) Indoor formaldehyde, benzene series, ammonia, ozone and radon caused by bacteria, microorganisms, bacteria and interior decoration, furniture, etc. Human life-sustaining activities require constant material exchange with the external environment. Adults need to ingest 12-15m from the outside world a day. 3 Air, Humans spend 70-90% of their time indoors. According to statistics, nearly half of the world's people are exposed to indoor air...

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention provides a ventilation device and a wall to overcome the lack of purification of the air due to the fact that there is a large amount of dust, peculiar smell and poisonous gas in the air because the outside air is directly introduced into the room in the prior art. Deal with the problems that cause secondary pollution indoors

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