Product Description of Mini Pleated 99.97% & 99.995% Replacement Clean Room H13/H14 HEPA Filter
Core Functions
The Mini Pleated H13/H14 HEPA filter is a terminal air purification component specifically designed for clean rooms and scenarios requiring high cleanliness levels. Its core function is to efficiently intercept ultrafine particulate matter in the air (such as PM0.3, bacteria, viruses, aerosols, etc.), ensuring that the output air meets international cleanliness standards.
H13 Grade: Offers a filtration efficiency of ≥99.97% for particles of 0.3 microns and larger, suitable for ISO Class 5-7 (Class 100 to Class 10,000) clean rooms.
H14 Grade: Provides a filtration efficiency of ≥99.995%, meeting the ultra-high cleanliness requirements of ISO Class 1-3 (Class 10 to Class 100) environments, and is widely used in semiconductor manufacturing, biopharmaceuticals, operating rooms, and other settings.
Structure and Material Characteristics
Filter Media:
Utilizes ultrafine glass fiber (Fiberglass) or PP high-efficiency filter paper as the filtration medium, with fiber diameters ranging from 0.5 to 2.0 microns. These fibers are randomly interwoven to form a high-density mesh structure, achieving a dual mechanism of physical interception and diffusion capture.
The filter media is waterproofed, with moisture resistance up to 100% RH, preventing swelling and failure caused by condensation or liquid water, and adapting to humid environments.
Pleated Structure:
Mini Pleat Design: Features closely spaced pleats (typically 2-5mm apart), increasing the expanded filter media area per unit volume by 3-5 times compared to traditional filter elements, significantly enhancing dust holding capacity and reducing flow resistance.
Gradient Density Structure: The density of the filter media gradually increases from the intake side to the exhaust side, enabling deep filtration and extending service life.
Sealing and Frame:
Sealing System: Employs polyurethane sealant or hot melt adhesive to ensure no leakage between the filter element and frame, preventing bypass of unfiltered air.
Frame Material: Made of aluminum alloy, galvanized steel plate, or stainless steel, offering strong corrosion resistance and adapting to chemically contaminated environments.
Separator-Free Design: Replaces traditional aluminum foil separators with hot melt adhesive, reducing airflow resistance and lowering energy consumption.
Physical Parameters:
Dimensions: Standard specifications include 610×610×50mm, 915×610×69mm, etc., with customizable sizes available to fit different equipment.
Weight: Lightweight design (4-10kg), facilitating easy installation and replacement.
Temperature Resistance: Continuous operating temperature ≤80°C (some models up to 90°C), adapting to high-temperature sterilization or drying processes.
Performance Advantages
High Filtration Efficiency and Low Flow Resistance:
Certified by EN1822 standard, the H13/H14 grade filter elements achieve interception efficiencies of 99.97% and 99.995%, respectively, for 0.3-micron particles, far exceeding ordinary filter elements.
Low initial pressure drop (≤220Pa), reducing HVAC system energy consumption and extending fan life.
Long Lifespan and High Dust Holding Capacity:
The gradient density structure and large filter media area design increase the filter element's dust holding capacity by over 50%, extending the replacement cycle to 1-2 years (depending on the operating environment) and reducing maintenance costs.
Stability and Reliability:
Designed to resist vibration and impact, adapting to the micro-vibration environment of clean room equipment operation.
The filter media and frame structure remain stable, with minimal deformation or fiber shedding over long-term use, preventing secondary pollution.
Environmental Friendliness and Safety:
The filter media and sealant comply with RoHS standards, releasing no harmful substances.
Fire rating reaches UL900 Class II, offering excellent flame retardancy.
Application Scenarios
Clean Rooms and Dust-Free Workshops:
As a terminal filtration unit, it provides ISO Class 1-7 clean air for electronic chip manufacturing, LCD panel production, precision machining, and other settings.
Biopharmaceuticals and Laboratories:
Used for air purification in operating rooms, negative pressure wards, and biosafety laboratories, intercepting bacteria, viruses, and other microorganisms to prevent cross-infection.
Industrial Process Filtration:
Compatible with FFU (Fan Filter Unit), laminar flow hoods, air handling units (AHUs), and other equipment, ensuring the cleanliness of compressed air or process gases.
Special Environment Adaptation:
High-temperature models can be used for intake filtration in food baking workshops and drying equipment; waterproof models are suitable for high-humidity environments (such as bottle washing rooms in the pharmaceutical industry).
Compatibility and Replacement Options
Original Factory Models: Such as KEL-HF, RT-MP003, etc., provide CE, ISO9001, and other certifications, ensuring compatibility with mainstream equipment (such as Camfil, AAF, Mann+Hummel).
Replacement Models: Various compatible filter elements are available on the market (such as Fleetguard AF25875, Donaldson Torit series). It is essential to verify dimensions, efficiency grades, and sealing methods to avoid leakage or performance degradation due to mismatches.
Maintenance Recommendations
Regular Replacement:
It is recommended to replace the filter element every 1-2 years or based on differential pressure alarm signals (recommended final resistance value: 250-600Pa) to prevent system pressure increase or energy consumption rise due to filter media blockage.
Storage Conditions:
Unused filter elements should be stored in a dry (RH≤60%) environment free of corrosive gases, avoiding direct sunlight or high temperatures that may cause filter media aging.
Installation Specifications:
Wear dust-free gloves during replacement to prevent hand oil contamination of the filter element; perform leakage detection after installation to ensure proper sealing.
Summary
The Mini Pleated H13/H14 HEPA filter, with its ultra-high filtration efficiency, low flow resistance, and long lifespan, is an ideal choice for clean rooms and high-cleanliness scenarios. Its mini-pleat structure, gradient density filter media, and reliable sealing design ensure stable performance under harsh operating conditions, helping users reduce maintenance costs, improve production yield, and meet international standards such as GMP and ISO.
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