Oltaven Mini-Pleat Panel Filter – No-Partition Medium Efficiency Filter (M6–E11)

The Oltaven Mini-Pleat Panel Filter is a no-partition medium efficiency filter that removes micron-sized particles from air in commercial HVAC, cleanroom pre-filtration, pharmaceutical, electronics and industrial applications. It is built with glass fibre or PTFE media, an anodised aluminium or stainless steel frame and hot-melt adhesive separators. It suits facility engineers, HVAC contractors and OEMs who need a compact, low-resistance filter that delivers consistent efficiency from M6 to E11. Oltaven manufactures the finished filter—not just the media—in Zhongshan, Guangdong, China.

From Media to Finished Filter

A filter’s job is to hold particles while letting air through. The media does the holding, but the finished filter determines how well that media performs. In a mini-pleat panel, media is folded into tight pleats and held apart by beads of hot-melt adhesive instead of aluminium separators. This design packs a large media area into a shallow frame, so air moves slowly through the pleats, giving particles more chances to stick while keeping resistance low.

Oltaven buys glass fibre and PTFE media, then pleats, frames and seals it in-house. We sell finished filters, not just media. That means we control pleat depth, adhesive pattern, frame squareness and seal integrity—the four factors that decide whether a filter meets its rated efficiency and resistance in the field.

What Decides Finished Performance

Efficiency, resistance and dust capacity are set by a chain of choices, not by media alone. The table below explains how each step in production shapes the final result.

Media grade. Finer fibres capture smaller particles but raise resistance. Oltaven offers glass fibre and PTFE media to cover M6 through E11, so you can match efficiency to the particles you need to remove.

Pleat geometry. Deeper pleats and more pleats per filter add media area, which lowers face velocity and resistance for a given airflow. The trade-off is depth: a 50 mm filter fits tight spaces, while a 70 mm filter adds media area and dust capacity.

Adhesive separators. Hot-melt beads hold pleats open and prevent them from collapsing under pressure. A consistent bead pattern keeps airflow even across the filter face and avoids bypass.

Frame and sealing. An anodised aluminium or stainless steel frame keeps the pleat pack rigid and square. Proper sealing between media and frame stops air from sneaking around the filter, which would lower overall efficiency.

Cleanroom assembly. Oltaven builds filters in six cleanrooms covering 20,000 m² of the 50,000 m² plant, reducing contamination during pleating, framing and sealing.

Applications

The mini-pleat panel filter is used wherever air needs medium-efficiency cleaning without high energy cost. Typical uses include:

• Commercial HVAC and ventilation – pre-filters and final filters in air handling units for offices, hotels and public buildings.
• Semiconductor and microelectronics cleanrooms – protection for final filters and FFU units.
• Pharmaceutical and food processing – pre-filtration in GMP workshops and production areas.
• Hospitals and cleanrooms – air quality control in operating theatres and controlled environments.
• Automotive and machinery manufacturing – paint booths, engine test cells and general ventilation.
• Data centres and energy storage – cooling air filtration for servers and battery rooms.

In each case, the filter can run alone or as a pre-filter ahead of a higher-efficiency stage.

Technical Specifications

The Oltaven Factory and Certifications

Oltaven brings more than 20 years of filter development and manufacturing experience to every project, with over 1,000 filter solutions developed to date. Our OEM/ODM capability lets us adapt media grade, frame material, dimensions, logo and packaging to your specification.

The 50,000 m² production base includes six cleanrooms totalling 20,000 m². Our in-house laboratory is CNAS-accredited and can issue test reports for efficiency, dust capacity and resistance. We hold IATF 16949 (achieved in 2024) and ISO 9001, ISO 14001 and ISO 45001 certifications. Products meet REACH and RoHS requirements, and compliance documents are available on request. The factory is located in Zhongshan, Guangdong, China.

OEM/ODM Workflow

Custom projects follow a structured path from requirement to delivery:

1. Share your requirements – provide device or system model, required dimensions or a drawing, airflow, operating conditions and target quantity.
2. Engineering review – our team selects media grade, pleat geometry and frame material to match your efficiency and resistance targets.
3. Quotation and sample – we issue a quotation and, where needed, produce a sample for your validation.
4. Sample approval – you test the sample; we adjust if necessary.
5. Production – bulk manufacturing in our cleanrooms under IQC, IPQC and OQC controls.
6. Testing and shipping – CNAS laboratory reports accompany the batch, and we arrange packaging and delivery.

Start a Custom Project

To receive a tailored proposal, please tell us your device or vehicle model, required size or drawing, airflow or water flow, operating conditions and estimated quantity. Our engineering team will respond with a specification and quotation. Contact Oltaven to discuss your filter requirements.