Plate filter

　Panel-Type Primary Filter

　　Performance:

　　Filtration Efficiency: Primarily targets larger particles, effectively filtering out dust, pollen, hair, fibers, insects, and other contaminants larger than 5μm. According to international standards (e.g., EN779/ISO 16890), its efficiency rating typically falls within G1 to G4.

　　High Dust Holding Capacity: The filter media is generally fluffy with a large surface area, enabling it to capture significant amounts of dust and impurities. This helps extend the service life of subsequent, more precise filters.

　　Necessity:

　　Protects Downstream Filters: Without a primary filter, large particles such as dust and hair would directly clog the more expensive medium and high-efficiency filters, drastically shortening their lifespan and leading to frequent replacements, thereby increasing costs.

　　The panel-type primary filter handles the bulk of coarse particulate matter, capturing over 80% of large pollutants in the air. This allows the medium and high-efficiency filters downstream to focus on trapping finer particles, ensuring the system operates optimally while significantly reducing overall operational costs.