Air Safe Filter

The Air Safe Filter (standard graded filtration, supports modular stacking, explosion-proof/sterile customization) is a multi-level protective air purification device customized for cleanrooms, compressed air systems, fresh air inlets, hazardous chemical workshops, medical clean areas, and other scenarios. Leveraging the company's years of experience in fluid purification and filter material integration technology, it focuses on "gradient graded filtration + differential pressure warning + leak-proof sealing." It adopts a flange quick-install/wall-mounted/vertical integrated structure, offering advantages such as wide filtration accuracy coverage, high interception efficiency, low resistance, convenient operation and maintenance, strong adaptability, and sufficient safety redundancy. 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 painting line air intake systems. It completely solves the industry pain points of traditional single-stage filters, such as insufficient precision, short consumable lifespan, high leakage risk, and inability to handle complex pollutants. It achieves **zero-level microbial penetration, precise interception of submicron particles, 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 an air terminal/pre-protection barrier for various high-cleanliness and high-safety scenarios, this product is based on the dual functions of "multi-level gradient purification + safety interlock 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, particulate-free, and oil mist-free air. It takes into account both cleanliness indicators and operational stability, and is suitable for high-requirement aseptic production, explosion-proof environments, precision manufacturing and other working conditions.

Full-range high-precision particle and microbial interception : It adopts a five-stage composite filtration architecture of "pre-filter + medium-efficiency capture + HEPA/ULPA high-efficiency 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 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 cleanliness requirements of medical grade and semiconductor grade.

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 consumable replacement. It adopts low-resistance pleated filter media and a uniform airflow duct design, resulting in 20%~30% lower operating resistance than traditional filters, reducing fan energy consumption. The filter media uses a quick-install snap-on 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 high-efficiency filter media has a lifespan of 1~2 years. The pre-filter can be washed and reused, significantly reducing operation and maintenance costs.

Dual safety protection: Sealed and leak-proof + explosion-proof and sterile. Utilizing a tenon-and-mortise seal and double silicone rubber sealing rings, the enclosure is integrally welded, resulting in an air leakage rate of <0.01%, eliminating the risk of short circuits from unpurified air. The explosion-proof model features an explosion-proof shell, anti-static coating, and spark detection system, conforming to 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.

1. Modular and hierarchical design, flexibly adaptable to different scenarios.

The filtration levels can be freely combined according to customer operating conditions (G4→F8→H14→U15), and it supports three installation methods: single wall-mounted, multiple units in parallel, and series connection in pipelines; the flange interface conforms to 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 combination filters with the same processing capacity, making it especially suitable for space-constrained scenarios such as cleanroom ceilings and small machine rooms.

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

Low-resistance filter media and streamlined air ducts reduce fan power consumption by more than 25%; the compressed air filter requires no additional power and is driven purely by differential pressure; operating noise is ≤65dB(A) (wall-mounted model), far below the noise standards for workshops and medical areas; consumables have long lifespan and clear replacement cycles, reducing downtime and procurement costs.

3. All materials are available, and it can withstand complex media.

The filter media and housing materials are fully customizable: for normal temperature conditions, galvanized steel plate + polyester filter media can be selected; for corrosion-resistant conditions, 316L stainless steel + PTFE filter membrane can be selected; for high temperature conditions, PPS filter media + high temperature resistant coating can be selected; for explosion-proof conditions, anti-static filter media + explosion-proof housing can be configured; it can effectively withstand oil mist, slight acid and alkaline gases, and high humidity environments, avoiding filter media clogging and corrosion damage.

4. Strong compliance, full testing and complete certification.

Before leaving the factory, each unit undergoes comprehensive testing for airflow, resistance, filtration efficiency, leakage rate, and antibacterial performance. Third-party testing reports, EN 1822 test reports for HEPA/ULPA filter media, explosion-proof certificates, and food-grade/medical-grade material certificates (MTC) can be provided. It fully complies with ISO 14644-1 cleanliness classification, GB 50457 cleanroom design specifications, and GMP pharmaceutical production quality management standards, and easily passes on-site acceptance by various authoritative institutions.

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