China Suppliers Factory EN1822 Mini-Pleated H13 HEPA Air Filter - High Efficiency & Durable Design
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Application Area
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Electronics Industry Semiconductor clean rooms, LCD panel production lines, precision instrument assembly rooms (often as final filters)
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Pharmaceutical & Bioengineering Sterile drug production areas, vaccine production lines, laboratories, animal facilities
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Healthcare Hospital operating rooms, sterile wards, leukemia treatment rooms
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Food & Beverage Aseptic filling rooms
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High-Requirement Research Institutions Precision instrument rooms, aerospace clean rooms
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Key Features
✅ 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 pleatless 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.
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The Efficiency of HEPA Filter
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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.
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Structure & Materials
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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.
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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.
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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.
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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).
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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.
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Wind Speed Relationship Diagram
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Product Parameters
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Remarks: (1) Initial resistance tolerance of ±10% (2) Support customer size
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Frequently Asked Questions
Q
What is a Mini-Pleated H13 HEPA Air Filter and how does it differ from a standard HEPA filter?
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A Mini-Pleated H13 HEPA Air Filter uses hot melt adhesive beads instead of traditional aluminum separators to maintain pleat spacing. This results in a more compact, lighter design with equivalent or larger filtration area, lower airflow resistance, and easier installation compared to conventional separator-type HEPA filters.
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What filtration efficiency does the EN1822 Mini-Pleated H13 HEPA filter achieve?
A
The EN1822 Mini-Pleated H13 HEPA filter achieves a minimum filtration efficiency of 99.95% (H13 grade per EN1822 standard) for particles in the 0.1–0.3 micrometer range, including bacteria, virus carriers, fine dust, and smoke particles. Higher efficiency grades are also available, ranging up to 99.999999%.
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What materials are used in the construction of Mini-Pleated HEPA filters?
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Mini-Pleated HEPA filters are typically constructed with ultra-fine glass fiber paper as the filter media, polyurethane sealant for end panels, hot melt adhesive beads for pleat spacing, and a frame made from galvanized steel, aluminum extrusion, or stainless steel. A peripheral gasket (neoprene, polyurethane foam, or silicone) ensures an airtight seal with the housing.
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In which industries and applications are Mini-Pleated H13 HEPA filters most commonly used?
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These filters are widely used in semiconductor and electronics clean rooms, pharmaceutical and bioengineering production facilities, hospital operating rooms and sterile wards, food and beverage aseptic filling rooms, and high-precision research laboratories including aerospace clean rooms. They are typically deployed as final-stage filters where the highest air cleanliness is required.
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Can the Mini-Pleated H13 HEPA filter be customized to non-standard sizes?
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Yes, custom sizing is supported. Customers can specify their required dimensions to accommodate different housing configurations and installation environments. Please refer to the product parameters table for standard size options, and contact us for custom size inquiries.
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How does face velocity affect the performance of a HEPA filter, and how should it be selected?
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Face velocity (the speed of air passing through the filter media) directly affects both filtration efficiency and pressure drop (resistance). Higher face velocity increases resistance and may reduce efficiency, while lower face velocity reduces energy consumption but requires a larger filter size. Rational selection of filter efficiency grade alongside appropriate face velocity is key to achieving the best overall economic and performance outcome for your specific application.