EN1822 Mini-Pleated H13 HEPA Air Filter

Electronics Industry: Semiconductor clean rooms, LCD panel production lines, precision instrument assembly rooms (often as final filters)

Pharmaceutical & Bioengineering: Sterile drug production areas, vaccine production lines, laboratories, animal facilities

Healthcare: Hospital operating rooms, sterile wards, leukemia treatment rooms

Food & Beverage: Aseptic filling rooms

High-Requirement Research Institutions: Precision instrument rooms, aerospace clean rooms.

High Efficiency: Extremely high filtration efficiency for particles in the 0.1-0.3 micrometer range (e.g., bacteria, virus carriers, smoke, fine dust). It is a critical final stage for creating a clean environment.

Low Resistance: Under the same airflow rate, the pleat less design typically offers lower initial resistance due to more efficient media packing, leading to better energy savings.

High Dust Holding Capacity: The optimized structure and high-quality filter media allow it to hold more dust, thereby extending its service life.

Compact Size & Light Weight: Compared to separator filters with the same filtration area, they have a more compact profile and are lighter, facilitating easier installation and maintenance.

Structure Relies on Adhesive Beads: Its structural integrity depends entirely on uniform and precisely applied hot melt adhesive beads, making the manufacturing process highly demanding.These materials should effectively capture dust particles without imposing excessive resistance to airflow. A chaotic network of fibers creates numerous barriers to particles, while the wide spaces between fibers allow air to pass through smoothly. Commonly used materials include glass fiber, synthetic fiber,polypropylene fiber, polyester fiber, and plant fiber. Generally, Mini-pleated HEPA filters use glass fiber.

The efficiency of currently available high-efficiency filters ranges from 99.9% to 99.999999%, and they can be selected based on specific requirements. The rational selection of filter efficiency and face velocity contributes to comprehensive economic benefits.

Filter Media: Typically ultra-fine glass fiber paper. The fibers have an extremely small diameter and are densely packed, capturing particles through various mechanisms like mechanical interception, diffusion, and inertial impact.

End Sealant: After folding, both ends of the filter media pack are sealed with polyurethane glue to form solid end panels, preventing unfiltered air from bypassing.

Hot Melt Adhesive Beads: Replace separators. They bond the filter paper at the peaks and valleys of the pleats, forming stable V-shaped channels. The shape, spacing, and uniformity of these beads directly impact the filter's performance and strength.

Frame: Common materials include:

Galvanized Steel: Most common, offering high strength and moderate cost.

Aluminum Extrusion: Lightweight and corrosion-resistant, often used in high-demand environments.

 Stainless Steel: Used in highly corrosive or high-hygiene areas (e.g., food processing).

Gasket: Installed around the frame perimeter to ensure an airtight seal between the filter and the housing. Common materials include closed-cell neoprene sponge, polyurethane foam, or silicone gaskets.

Remarks: (1) Initial resistance tolerance of± 10%   (2) Support customer size