Antivirus filter

Abstract

The invention provides an antivirus filter. The antivirus filter comprises an outer structure located at an air outlet and further comprises a support frame and a multilayer filter material structure. The support frame is in seal connection with the outer structure through a seal structure. The multilayer filter material structure is arranged in the support frame in parallel. The multilayer filter material structure comprises a first filter layer and a second filter layer. The support frame comprises an air inlet support. At least one set of multilayer filter material support sheets are arranged in the air inlet support and are perpendicular to the inner surface of the air inlet support. The antivirus filter has the effects of better efficiency and better gas permeability in the aspect of filtering of viruses. The antivirus filter can reach the penetration rate lower than one thousandth for viruses, and the purpose of protection of human health is met effectively. If the technical standards of the two layers of filter materials are improved to 5% and 1% correspondingly, the penetration rate which cannot be detected can be achieved, and the antivirus filter can be used for very strict protective occasions. Due to the fact that the windage resistance of the combined filter materials of the technology belongs to the low windage resistance range, after combination, the windage resistance is still lower than that of filter materials of which one single layer is used and has a very high filtering effect on particulate matter.

Description

technical field [0001] The invention relates to an antivirus filter, which belongs to the field of air cleaning appliances. Background technique [0002] In places such as hospitals and scientific research laboratories, there may be a danger of pathogenic viruses and their attachments suspended in the air. For some people with poor physique or patients, a small amount of virus may also pose a greater threat when exposed to polluted air. Viruses are only about one-hundredth the size of bacteria and have no cellular structure. Some viruses are about 100 nanometers (0.1 microns) in size, but there are also very small common viruses, such as coronaviruses that are 30 nanometers (0.03 microns), and foot-and-mouth disease viruses that are as small as 7-8 nanometers. The existing air purification filter has a better filtering effect on larger particles, such as 2.5 micron and 0.3 micron particles, and also has a certain effect on bacteria, but for viruses, it can easily pass thro...

AI Technical Summary

Problems solved by technology

In addition, the sealing structure between the general filter screen and the side frame does not take into account nanoscale viruses, and there is a risk that viruses in the air will bypass the filter screen and enter the filtered air directly from the rear end of the filter screen.

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