What is the pre-filter product among air purifiers?

They recommended a pre-filter product among air purifiers.

What is a pre-filter product?

642 2017-04-12 Gentleman

It is a filter that filters out animal hair, lint, hair, and large dust first.
It is the outermost filter that protects high-performance filters such as HEPA/deodorization filters and prolongs life. It can be washed with water, and it can be used semi-permanently even if used for a long time because it does not degrade performance.
[Naver Knowledge Encyclopedia] Free Filter (Shopping Terminology Dictionary)
http://terms.naver.com/entry.nhn?docId=2419554&...

Gentleman 8 years ago 0

A. 2

Pre-filter refers to a filter that can remove large amounts of dust.
It's nice to wash it with water.
It is good to use in an environment where dust larger than fine dust flies.

Gentleman 8 years ago 0

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