HEPA Safe Filter

The HEPA Safe Filter (standard high-efficiency version, supports ULPA ultra-high efficiency, explosion-proof/sterile customization) is a high-efficiency terminal purification device specifically designed for scenarios with high cleanliness and safety requirements. Leveraging the company's years of experience in fluid purification and filter material integration technology, it centers on "HEPA/ULPA high-efficiency filter media + gradient pre-filtration + leak-proof sealing + safety interlocking." It adopts a flange quick-install/wall-mounted/ceiling-mounted integrated structure, combining advantages such as high filtration accuracy, thorough interception, low resistance, convenient operation and maintenance, sufficient safety redundancy, and strong adaptability. It strictly complies with GB/T 14295, GB/T 6165, ISO 14644, and EN standards. Manufactured to 1822 standards, this filter is suitable for temperatures from room temperature to 80℃ (a 120℃ high-temperature version is available upon request), handling air volumes from 500 to 50,000 m³/h and compressed air pressures from 0.4 to 1.0 MPa. It is widely used in electronic semiconductors, biopharmaceuticals, food processing, precision machinery, chemical explosion-proof workshops, hospital operating rooms, laboratories, data centers, and terminal purification in coating lines. It completely solves the industry pain points of traditional filters, such as insufficient ultrafine particle interception, high leakage risk, substandard cleanliness, and inability to adapt to harsh environments. It achieves **ultimate interception of submicron particles, zero microbial penetration, and isolation of toxic and harmful aerosols**, helping companies pass various stringent certifications and environmental audits, including GMP, ISO 5 cleanliness standards, and pressure vessel safety certifications.

As the core of terminal protection in high-cleanliness and high-safety scenarios, this product focuses on the dual functions of "HEPA high-efficiency fine filtration + full-process safety protection." These three functions work together to connect the fresh air duct, compressed air main, and cleanroom air supply terminal, achieving triple safety protection of sterile air, no ultrafine particles, and no oil mist. It balances cleanliness indicators with operational stability and is suitable for demanding conditions such as high-requirement aseptic production, explosion-proof environments, and precision manufacturing.

HEPA/ULPA Ultra-High Efficiency Particle + Microbial Interception : The core uses imported HEPA/ULPA high-efficiency filter media, combined with a composite filtration architecture of "pre-filter + medium-efficiency capture + HEPA terminal + (optional) activated carbon/VOC catalyst layer + PTFE antibacterial coating"; the pre-filter intercepts large particles larger than 5μm, the medium-efficiency filter captures dust of 1~5μm, the HEPA filter achieves a filtration efficiency of over 99.97% for 0.3μm particles, and the ULPA customized version achieves an efficiency of 99.9995% for 0.12μm particles; the surface PTFE nano antibacterial coating can inhibit the growth of microorganisms such as Escherichia coli and Staphylococcus aureus, with an outlet microbial concentration ≤1CFU/m³ and oil mist residue ≤0.01mg/m³, meeting the ultimate cleanliness requirements of medical grade and semiconductor grade, and completely intercepting ultrafine dust and harmful aerosols.

Differential pressure linkage early warning + low resistance and long-term operation and maintenance : The standard configuration includes a PLC online differential pressure monitoring system with preset high, medium and low resistance thresholds. Overpressure triggers an automatic alarm and prompts for HEPA filter replacement. It adopts low-resistance pleated HEPA filter media and a uniform airflow duct design, resulting in 20%~30% lower operating resistance than traditional HEPA filters, reducing fan energy consumption. The HEPA filter media uses a quick-release buckle + sealing ring structure, allowing for tool-free replacement by a single person. Compressed air type can be equipped with an automatic drain valve to prevent condensate/oil mist accumulation. Under normal temperature clean operating conditions, the HEPA filter media lifespan can reach 1~2 years. The pre-filter can be washed and reused, significantly reducing operation and maintenance costs and downtime losses.

Dual safety protection: Sealed and leak-proof + explosion-proof and sterile. Utilizing a tenon-and-mortise seal and double silicone rubber sealing rings, the housing is integrally welded, resulting in an air leakage rate of <0.01%, preventing short circuits of unpurified air and ensuring the high-efficiency interception effect of the HEPA filter material is not compromised. The explosion-proof model features an explosion-proof shell, anti-static coating, and spark detection system, complying with GB3836 standards and suitable for flammable and explosive dust/gas environments. The sterile medical model is made of 316L stainless steel, capable of withstanding CIP/SIP online cleaning and sterilization, meeting GMP and FDA cleanroom certification requirements. An over-temperature/over-pressure protection valve is added to prevent abnormal system damage and ensure long-term safe operation of the equipment.

1. HEPA core technology highlighted, cleanliness level controllable and adjustable.

The core HEPA/ULPA filter media have all passed EN 1822 third-party testing and certification, and can be flexibly selected according to customer cleanliness requirements (H13→H14→U15→U16), covering a full range from regular high efficiency to ultra-high efficiency, and can meet ISO 4~5 cleanliness requirements, adapting to different harsh scenarios from precision manufacturing to sterile medical care; the modular graded design allows for free combination of pre-filtration, medium efficiency and HEPA levels, ensuring both interception effect and extending the life of HEPA filter media.

2. Modular installation, flexible adaptation to different scenarios

It supports four installation methods: single wall-mounted, multiple units in parallel, duct series, and ceiling-mounted. The flange interface conforms to the GB/T 9113 standard and can be directly connected to existing air ducts/compressed air pipelines without large-scale modification. The compact body design reduces the volume by 35% compared to traditional HEPA filters with the same processing capacity, making it especially suitable for space-constrained scenarios such as cleanroom ceilings, small machine rooms, and laboratories, without affecting the on-site layout.

3. Low energy consumption and low noise, resulting in outstanding economic efficiency in operation.

Low-resistance HEPA filter media and streamlined air duct optimization design reduce fan power consumption by more than 25%; compressed air type HEPA filter requires no additional power, driven purely by differential pressure, resulting in significant energy savings; operating noise ≤65dB(A) (wall-mounted model), far below the noise standards of workshops and medical areas; HEPA filter media lifespan is well-defined, and replacement cycles can be precisely controlled through differential pressure monitoring, reducing downtime and consumable procurement costs.

4. All materials are optional, resistant to complex media, and highly compliant.

Filter media and housing materials are fully customizable: For normal temperature applications, galvanized steel plate + polyester pre-filter + glass fiber HEPA is available; for corrosion-resistant applications, 316L stainless steel + PTFE filter membrane HEPA is available; for high-temperature applications, PPS filter media HEPA with a high-temperature resistant coating is available; for explosion-proof applications, anti-static HEPA filter media + explosion-proof housing is available. Effectively resistant to oil mist, mild acid and alkaline gases, and high humidity environments, preventing filter media clogging and corrosion damage. Each unit undergoes comprehensive testing before leaving the factory, including airflow, resistance, filtration efficiency, leakage rate, and antibacterial performance. Third-party testing reports, HEPA/ULPA filter media certification reports, and explosion-proof certificates are available, fully complying with various stringent certification requirements.

Shanghai Hanye Engineering Technology Co., Ltd. specializes in air purification and fluid safety, focusing on addressing the challenges of HEPA high-efficiency filtration in high-cleanliness and high-safety scenarios. With "HEPA core, precise interception, safety and reliability, and low-cost operation and maintenance" as its core principles, the company provides customers with highly adaptable HEPA Safe Filters and supporting system solutions. For detailed parameters, HEPA rating selection, operating condition adaptation, or on-site case studies, please feel free to contact us!