An air purifier that does not need to replace the filter screen

Abstract

The invention relates to an air purifier without the requirement for replacing filter screens and a using method of the air purifier. The air purifier comprises a base; a housing comprising an air inlet and an air outlet is arranged at the upper part of the base; a control panel and a purification device are arranged inside the housing; the control panel is electrically connected with the purification device; the purification device comprises a fan capable of sucking air; a stainless nano silver ion filter screen which is used for filtering large particle chips, hair and foreign bodies and can sterilize is arranged below the fan; a nanofiber membrane filter screen capable of carrying out PM2.5 (Particulate Matter2.5) filtration is arranged below the stainless nano silver ion filter screen; a photocatalyst filter screen capable of carrying out sterilization and decomposing formaldehyde and other toxic substances is arranged below the nanofiber membrane filter screen; an anion generator capable of sterilizing, disinfecting and accelerating smoke removal is arranged below the photocatalyst filter screen. According to the air purifier, unfiltered air is sucked by the fan, and filtered fresh air is discharged by the purification device; the purification device can be repeatedly washed or does not need to be washed, and does not need to be replaced.

Description

technical field [0001] The invention provides an air purifier which does not need to replace a filter screen, and belongs to the application field of air purification technology. Background technique [0002] Nowadays, as air pollution becomes more and more serious, people pay more and more attention to the harm caused by air pollution to the body. The bad weather has triggered an upsurge of air purifiers. Traditional air purifier purification methods mainly include physical methods, electrostatic adsorption methods and chemical purification. Physical purification methods are divided into activated carbon adsorption filtration and HEPA mesh mechanical filtration. The disadvantage of activated carbon adsorption filtration is that ordinary activated carbon cannot absorb all toxic gases, and its efficiency is low and easy to desorb. The efficiency of the HEPA filter is relatively high, but the filter needs to be cleaned or updated regularly, which has a certain hidden cost; th...

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Problems solved by technology

However, once the power is turned off, the dust adsorbed on the electrodes will be released and cause secondary pollution, so the electrode plates need to be cleaned regularly; chemical purification methods include photocatalysis and formaldehyde scavenger, but photocatalysis requires a lower air flow rate, and the purification speed is relatively low. Slow and has a certain amount of radiation to the human body

The substances generated after the chemical reaction of the formaldehyde scavenger are likely to cause secondary pollution. In practice, the secondary detection often exceeds the standard. Although the scavenger can absorb formaldehyde without changing the chemical composition, it can reduce the pollution in the air. Formaldehyde content, but this method treats the symptoms but not the root cause, formaldehyde is easy to be released again

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