V-Type High Efficiency Filter (M6–H14) for Cleanrooms and AHUs

The Oltaven V-Type High Efficiency Filter is a finished air filter that captures particles from M6 up to H14 efficiency using high-performance glass fiber media arranged in a V-bank structure. It is designed for high-airflow systems such as cleanroom AHUs, FFUs, and gas turbine intakes. This filter is for engineers and procurement teams who need low resistance, high dust holding capacity, and reliable sealing in demanding environments.

From Media to Finished Filter

Media is the starting point, but the finished filter’s performance comes from how that media is pleated, framed, and sealed. The glass fiber paper determines the base efficiency and pressure drop per unit area. Pleating increases the surface area, which lowers face velocity and resistance while raising dust holding capacity. The V-bank arrangement packs multiple pleated panels into a compact frame, directing air evenly and reducing turbulence. The frame provides structural support against high velocities, and the sealant ensures no air bypasses the filter. At Oltaven, we control each step—from media selection to final assembly—so the filter you receive meets the stated efficiency and resistance, not just the media’s lab rating.

We sell finished filters, not just media. That means we take responsibility for the entire construction: pleat geometry, separator design, frame material, and sealing method. This integrated approach is why our V-type filters maintain low resistance at 2.5 m/s and deliver consistent particle removal across the entire face area.

What Decides Finished Performance

Three factors govern the finished filter’s efficiency, resistance, and capacity: media choice, pleating and forming, and framing and sealing. Each interacts with the others, so changing one affects the whole.

Media choice

We use high-quality ultra-fine glass fiber filter paper. Its fiber diameter and density set the initial efficiency and resistance. For higher efficiency grades (E10 to H14), we select finer fibers that capture smaller particles but may increase resistance; the V-bank structure compensates by increasing area.

Pleating and forming

Pleat height, pleat count, and separator design determine usable media area. More pleats mean more area, lower face velocity, and lower resistance—but too many pleats can cause pleat crowding and reduce effective area. Our forming process balances these factors to achieve the target resistance at 2.5 m/s while maximizing dust holding capacity.

Framing and sealing

The frame must resist deformation at high velocities. We offer ABS plastic and galvanized iron frames, both engineered for rigidity. Sealing is equally critical: any leak path around the media or between frame sections allows unfiltered air to pass. Our sealing method bonds the media pack to the frame continuously, ensuring zero bypass and stable efficiency over the filter’s life.

Applications

Because the V-type filter combines high airflow capacity with efficiencies from M6 to H14, it fits many critical environments:

• Pharmaceutical GMP workshops – where reliable particle control supports sterile conditions.
• Semiconductor and microelectronics cleanrooms – for ISO Class 5–8 environments, including wafer fabs and packaging areas.
• Hospital operating rooms – to maintain cleanliness and protect patients.
• Gas turbine intake systems – where high dust holding and low resistance reduce operating costs.
• Commercial building central air handling units (AHUs) – for improved indoor air quality with energy savings.

In each case, the filter’s low resistance at 2.5 m/s helps reduce fan energy, while its high dust holding capacity extends service life.

Technical Specifications

The Oltaven Factory and Certifications

Oltaven brings over 20 years of filtration experience to every V-type filter. Our 50,000 m² manufacturing facility in Zhongshan, Guangdong, includes six cleanrooms totaling 20,000 m², where filters are assembled in controlled conditions to prevent contamination. Our in-house CNAS-accredited laboratory can test efficiency, dust holding capacity, and resistance, providing reports that support your validation needs.

We are certified to ISO 9001, ISO 14001, and ISO 45001, and in 2024 we obtained IATF 16949 certification for automotive quality management. Our products comply with REACH and RoHS environmental regulations, and we can supply documentation for compliance. With more than 1,000 filtration solutions developed, we have the expertise to tailor a filter to your exact requirements. Our automated production lines support monthly capacity in the millions of pieces, ensuring reliable supply for large projects.

OEM/ODM Workflow

We support full OEM/ODM customisation. The process is straightforward:

1. Inquiry and requirements – share your device or system model, required efficiency, airflow, operating conditions, and quantity.
2. Proposal and design – our engineers propose a filter design, including media, pleat geometry, frame, and sealing, with drawings for approval.
3. Sample production – we produce samples (typically within 7–10 days) for your testing and validation.
4. Testing and approval – you test the samples; we can also provide test reports from our CNAS lab.
5. Production and delivery – after approval, we manufacture your order with IQC, IPQC, and OQC checks, and deliver according to schedule.

Start a Custom Project

To receive a tailored quote, please provide:

• Device or vehicle model (if applicable)
• Required dimensions or a drawing
• Airflow or water flow rate
• Operating conditions (temperature, humidity, contaminants)
• Estimated quantity

Our team will respond promptly with a proposal. Contact us to discuss your project.