FIELD: air purifiers.
SUBSTANCE: air purifier contains a filter unit having, in order, starting from the air intake side: a pre-filter, the first dust filter, a total VOC filter, a target gas filter and the second dust filter. The fan is located between the pre-filter and the second dust filter. The filter design overcomes the problem that the target gas filter may have a short lifespan due to the influence of other VOCs in high-pollution homes.
EFFECT: invention provides more balanced filter performance for different contaminants and can provide a versatile filter structure that can be used in different home environments.
13 cl, 1 dwg
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