Metal-film filtering screen and air purifying device

Abstract

The invention provides a metal-film filtering screen and an air purifying device, and relates to the field of air purification. The metal-film filtering screen is mounted in an air filtering device; the air filtering device is provided with an air inlet and an air outlet; the metal-film filtering screen comprises a medium-efficiency filtering screen and a high-efficiency filtering screen. The medium-efficiency filtering screen more approaches the air inlet relative to the high-efficiency filtering screen; the medium-efficiency filtering screen and the high-efficiency filtering screen both comprise multiple layers of filtering plates; a gap exists between two adjacent layers of the filtering plates; the filtering plates are provided with multiple filtering holes; the filtering plates are made from intermetallic compounds. As the filtering screen is made from a special intermetallic compound, the purification effect is good; a material is quite environment-friendly; moreover, the metal-film filtering screen can be circularly rinsed and repeatedly used; after a client purchases a fresh air ventilator with the filtering-screen material, no any consumable-material expenses exist. In this way, the fussy consumable material replacing action is virtually decreased for the client; meanwhile, the cost is also greatly saved for the client.

Description

technical field [0001] The invention mainly relates to the field of air purification, in particular to a metal film filter net and an air purification device. Background technique [0002] The HEPA (high-efficiency particulate) primary filter, medium-efficiency filter, and high-efficiency filter that filter air pollutants inside the existing fresh air blower are basically made of glass fiber filter paper, which has a large filtering area, low resistance, high filtration rate, and environmental protection. Features. This kind of HEPA technology filter cannot be washed with water. In the current situation of serious indoor air pollution in China, the longest life of the HEPA filter is generally only 3 months or even shorter, which means that the HEPA filter needs to be cleaned. Change often. According to the normal frequency of use, the fresh air filter is generally replaced every 1-2 months, which to a certain extent brings pressure on customers to purchase consumables. ...

AI Technical Summary

Problems solved by technology

[0004] At present, there is also a washable filter technology, but this filter is only a large-particle filter with an initial effect. Although it reduces the use of consumables to a certain extent, it cannot achieve the level of zero consumables when using fresh air in the later stage.

Images