FAQs

The NAFIL series is one of NanoFiltech’s core products, utilizing advanced electrospinning technology to create nanofiber filter cartridges with ultra-high filtration efficiency and low pressure drop. 

The products include:

> NAFIL-C Series: Primarily used for gas filtration in industrial environments, such as wood processing, mining machinery, and chemical plants, with features of anti-static and flame-retardant                                         properties.

> NAFIL-P Series: Specifically designed for cleanroom environments in industries like food and pharmaceuticals, capable of efficiently filtering microorganisms, dust, and other particles.

> NAFIL-B Series: Mainly used in HVAC systems for high-efficiency filtration, providing long-lasting clean air solutions.

> NAFIL-V Series: Designed for environments requiring high cleanliness levels, such as electronic manufacturing, pharmaceuticals, and hospitals. It is also used in large buildings' HVAC systems                                   to remove dust, microorganisms, and other pollutants, maintaining air quality.

Nanofiber filtration technology uses electrospinning to produce ultra-fine, lightweight, and highly efficient nanofibers. These fibers are much smaller in diameter than conventional fibers, allowing them to capture smaller particles, pollutants, and microorganisms. Compared to traditional filter materials, nanofiber filters offer the following advantages:

> High filtration efficiency: Can effectively remove up to 99.9998% of fine particles (such as PM2.5, dust, oil mist, etc.).

> Low pressure drop: Achieves lower pressure loss at the same airflow, ensuring energy savings and higher efficiency.

> Long service life: The high surface area of nanofibers extends the filter's lifespan while maintaining high efficiency.

Nanofiber filtration material is produced using electrospinning technology, which utilizes high voltage to draw polymer solutions or molten substances into ultra-fine fibers with nanometer-sized diameters. This technique allows us to control fiber diameter, pore structure, and surface properties, enhancing the filter's ability to capture tiny particles. Compared to traditional filter materials, electrospinning technology not only offers higher filtration efficiency but also lower pressure drop and longer service life.

The core advantages of the NAFIL series products are their ultra-high efficiency and multi-functionality:

> High filtration efficiency: The NAFIL series filters utilize nanofiber technology, capable of filtering 99.9998% of particles, significantly improving air quality.

> Anti-static and flame-retardant: The NAFIL-C series is specifically designed with anti-static and flame-retardant features, ideal for hazardous environments, such as chemical plants.

> Wide adaptability: These filters are suitable for various environments and temperature conditions, including harsh high-temperature and high-humidity environments.

Choosing the right filter material requires considering several factors:

> Filtration efficiency requirements: Choose the appropriate filter grade based on the filtration efficiency needed for your application. For instance, H14 grade HEPA                                                           filters are suitable for high-purity environments.

> Airflow: Select the appropriate filter size and airflow handling capacity based on the airflow of your equipment or space.

> Working environment: If operating in a high-temperature or chemically aggressive environment, choose filters designed to resist high temperatures or corrosion.

NanoFiltech, through innovative filter cartridge design and advanced air filtration systems, has redefined industrial air purification, providing smarter, more efficient clean air solutions. Our nanofiber filters are widely used across several industries, including but not limited to:

> Industrial air purification: Used in wood processing, mining equipment, chemical production, and other industries to remove harmful particles, protecting both                                                             equipment and worker health.

> Cleanrooms and pharmaceutical industry: Prevents bacterial and particle contamination in pharmaceutical plants and food processing, ensuring product quality and                                                                            environmental hygiene.

> HVAC systems: Improves air quality in commercial and residential air conditioning systems.

> Gas turbine inlet filtration: Provides efficient filtration, extending equipment life and enhancing operational efficiency.

NanoFiltech filters are designed for easy installation, and customers typically do not need special tools or techniques. Our filters come with standardized interfaces and user-friendly installation instructions, ensuring that even non-professionals can quickly complete the installation.

However, for larger or more complex systems, we recommend having our professional technical team provide on-site support to ensure optimal installation and filtration performance.

Selecting NanoFiltech’s filter products can save operational costs in several ways:

> Energy savings: Our filters feature low pressure drop design, reducing energy consumption in air conditioning systems, ventilation systems, and other                                              equipment, which in turn lowers electricity costs.

> Extended equipment life: Efficient particle filtration and lower maintenance frequency significantly reduce equipment wear, prolonging equipment lifespan and                                                reducing repair and replacement costs.

> Reduction in contamination loss: Efficient air purification reduces the risk of contamination in products and environments, minimizing production losses and                                                                quality issues, and ensuring product safety and quality.

Yes, NanoFiltech provides flexible customization services. Based on your specific needs and working environment, we can customize filters with different specifications, filtration efficiencies, and materials. Whether it's size, material, high-temperature resistance, or corrosion resistance, we offer tailored solutions to best meet your application requirements.

Yes, all NanoFiltech products comply with international quality standards, including ISO 9001 quality management system certification. We also ensure that every batch of products meets the safety and performance requirements of the industry through stringent quality control and testing. Our nanofiber filtration materials have passed multiple industry certifications, ensuring they meet global customer requirements and standards.

We are committed to providing green and environmentally friendly solutions:

> Sustainable materials: Our nanofiber materials are made from eco-friendly materials and comply with international environmental standards.

> Energy efficiency: Nanofiber filters have lower pressure drops, reducing energy consumption.

> Long product lifespan: High-efficiency filtration and low maintenance costs extend the equipment's lifecycle, reducing the environmental impact of frequently replacing filters.

NanoFiltech's headquarters is located at Room 907, Block A, 999 Jinzhong Road, Changning District, Shanghai, China. Our factories are located at Factory 7, 4885 Pingshan Road, Pinghu City, Jiaxing, Zhejiang and A06, Turingtou Industrial Zone, Yangquan City, Shanxi, China.

When compared to glass fiber materials, H13-grade PTFE composite filter media offer several key advantages:

> Filtration performance and stability: PTFE composite filters use a multi-layer structure (PET substrate + PTFE membrane + PET support), with a pore size distribution optimized for surface filtration. This results in higher efficiency (≥99.97% for 0.3μm particles) and more stable performance over time. In contrast, ultra-fine glass fiber has a broader pore size distribution (0.2-0.5μm) and is prone to efficiency loss due to deep-layer dust buildup, resulting in lower long-term performance.

> Pressure drop and energy consumption: PTFE composite media offer a lower initial pressure drop (≤120Pa) and lower energy consumption throughout its service life (15%-20% less than glass fiber), ensuring that energy costs for FFUs remain stable. Glass fiber, on the other hand, has a higher initial pressure drop (around 180Pa) and a faster rise in pressure drop over time due to deep-layer dust accumulation.

> Dust holding capacity and service life: PTFE composite filters have good dust holding capacity (180-200g/m²) and a longer service life (2-2.5 years) due to their pre-filtration design, which prevents direct dust accumulation on the PTFE membrane. Glass fiber filters, while having a higher dust holding capacity (up to 250g/m²), require frequent replacement due to deep-layer clogging and increased pressure drop over time (1-1.5 years service life).

> Chemical/environmental resistance: PTFE composite filters excel in high-temperature and chemical resistance, with the PTFE membrane capable of withstanding temperatures from -200°C to 260°C and resisting acids, alkalis, and organic solvents. Glass fiber filters have lower temperature resistance (up to 120°C) and poor acid resistance, making them unsuitable for certain high-chemical or high-temperature environments.

PTFE composite filter media are particularly suitable for the following environments:

> High-cleanliness and high-requirement industries: Industries such as semiconductor wafer production (lithography areas, packaging areas) and medical sterile injection workshops require zero fiber shedding, resistance to organic solvents (e.g., photoresist in semiconductor production), and long-term filtration stability. PTFE composite media meet these requirements perfectly.

> Long-term operation with low energy consumption: In large data center cleanrooms and electronic display workshops (e.g., OLED/LCD production), PTFE composite filters offer a longer service life (2.5-3.5 years), low pressure drop, and energy savings, making them ideal for reducing long-term operational costs.

> High humidity or slight corrosion environments: In food processing cleanrooms or workshops with slightly corrosive gases (e.g., chemical precision instruments), PTFE composite filters perform well due to their moisture resistance and acid-alkali resistance, eliminating the need for additional coatings and simplifying maintenance.

Ultra-fine glass fiber is preferred in the following scenarios:

> Limited budgets and simple working conditions: In ordinary electronic assembly workshops or cosmetics filling workshops where cleanliness requirements are lower and the service life of the filter can be shorter (1-1.5 years), ultra-fine glass fiber filters provide a cost-effective solution.

> High dust load environments: In inlet pre-filtration sections or high-dust environments (e.g., mechanical processing workshops), ultra-fine glass fiber offers high dust holding capacity (up to 300g/m² for high-fluff products), which is ideal for reducing maintenance frequency and lowering the workload for replacement.

> Adaptation to old FFUs: In older FFUs with narrow slots (≤0.2mm) that cannot accommodate thicker PTFE composite media, ultra-fine glass fiber filters (thickness: 0.15-0.2mm) fit easily without requiring modifications, offering a simple solution for retrofitting older equipment.

You can contact our sales team via email at sales1@nanofiltech.com or call +86 158 3197 8905 for inquiries.

In cleanrooms or controlled environments, even tiny pollutants such as dust, microorganisms, and oil mist can severely impact product quality and production processes. The characteristics of nanofiber filtration materials make them indispensable in these environments:

> Ultra-high filtration efficiency: The high surface area and ultra-fine fiber diameter of nanofibers allow them to filter out smaller particles compared to conventional filter                                                          materials, providing higher levels of cleanliness.

> Low pressure drop operation: A low pressure drop means more stable airflow, energy savings, and consistent temperature and humidity control in the environment.

> Anti-microbial properties: The high surface area of nanofibers not only captures particles but also effectively reduces microbial growth, ensuring the stability of the clean                                                environment.

Yes. Nanofiltech is recognized among China’s top 1000 high-tech manufacturing enterprises, specializing in nanofiber filtration and insulation materials.

With over 30,000㎡ of production space, advanced electrospinning and ePTFE coating lines, and ISO9001 certification, Nanofiltech has become one of the most trusted filtration media suppliers in Asia, serving partners in more than 50 countries worldwide.

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