Engineered to protect secondary components and maximize absolute system lifetime across commercial and critical applications.
In modern HVAC engineering, the pre-filter represents the vital first line of defense. Selecting high-performance pre-filters (typically rated G2 to G4 under EN 779 or MERV 4 to 8 under ASHRAE 52.2) is not merely about blocking large dust particles; it is about managing system thermodynamics and maximizing the operational lifespan of expensive downstream secondary filters, such as bag filters and terminal HEPA filters.
Information Gain Analysis: By capturing coarser particulate matter (such as PM10, lint, hair, and heavy dust), pre-filters control the rate of pressure drop across the entire system. Without high-quality pre-filtration, secondary HEPA modules clog prematurely, exponentially increasing operational energy expenses and replacement frequencies.
As an integrated high-tech enterprise, Shenzhen Snow Peak Clean Technology Co., Ltd. is specialized in air filtration products research and development, production, sales, import and export trade. We produce and supply: Pre-filter, pocket filter, HEPA filter, chemical filter; replacement HEPA filter, car cabin air filter, humidifier filter; pocket filter media, melt-blown composite filter media, and other high-performance filter materials. We provide high quality air purification solutions and products for indoor air pollution control and air conditioning systems of civil and industrial buildings, microelectronics, pharmaceutical, laboratory, school, hospital clean room, etc.
Combined with self-developed patented technology, our sterilizing antiviral HEPA filter can effectively filtrate fine particles, so that PM2.5 concentration is kept down to 10 micrograms/m3, which is 5 times better than the national standard. It effectively inhibits the breeding of microorganisms, showing a sterilization rate up to 99.9% with zero secondary pollution, and a removal of H1N1 virus efficiency as high as 99.99%.
Having 15 years of international air purification technology experience as the background, our company has standardized production workshops, dust-free filter workshops, and first-class technical HEPA filters production and inspection lines. Our independent research and development of fully automatic air filter production lines, equipped with AMADA CNC punch and CNC bending machines as well as many other advanced high-end tools, provides a strong guarantee for the consistent quality and output of our air filtration and purification products.
An inside look at our standardized fabrication workflows and state-of-the-art tooling machines in Shenzhen, China.
A technical mapping of EN 779, ASHRAE 52.2, and ISO 16890 to assist global procurement teams in design verification.
Navigating international certifications requires understanding how regional air safety standards align. For global enterprises sourcing primary HVAC filtration, here is an industry standard reference:
| EN 779 Class | ISO 16890 Group | ASHRAE 52.2 Equivalent | Primary Target Particle Size | Typical Application |
|---|---|---|---|---|
| G2 | ISO Coarse > 30% | MERV 2 - 4 | > 10 μm (Large Sand, Dust, Hair) | Basic Residential & Heavy Duty Intake |
| G3 | ISO Coarse > 50% | MERV 5 - 6 | > 10 μm (Pollen, Coarse Particles) | Commercial AHU Inlet Protection |
| G4 | ISO Coarse > 60% | MERV 7 - 8 | 3.0 - 10 μm (Mold Spores, Cement Dust) | General Commercial & Cleanroom Pre-stages |
| M5 / M6 | ISO ePM10 > 50% | MERV 9 - 11 | 1.0 - 3.0 μm (Dust Mites, Coal Dust) | Automotive Spray Booths, Hospitals |
Evaluating China's manufacturing clusters, supply chain resilience, and global localized distribution advantages.
Shenzhen represents a global epicenter of raw material sourcing (non-woven fabrics, synthetic polymers, activated carbon) coupled with high-efficiency automation machinery (AMADA CNC, automated pleating), enabling rapid lead times and significant structural cost optimization.
Our dust-free filter workshops and advanced test ducts allow us to perform dynamic filtration verification. We ensure all batch shipments meet ISO 16890 and CE regulations. In addition, our medical and cleanroom grade filters achieve a sterilization rate up to 99.9%.
We provide full documentation, localized custom dimensions, frame configurations (cardboard, aluminum, galvanized steel, plastic), and packaging optimizations. Our systems are engineered to fit smoothly into regional distribution networks in Europe, North America, and beyond.
Detailed engineering answers to address procurement challenges, structural parameters, and technical expectations.
Premium replacement filters, high-efficiency V-bank filters, and custom media rolls for diverse ventilation requirements.
Snow Peak