Cylindrical Antibacterial and Antiviral HEPA Filter

This is a cylindrical HEPA filter with an antibacterial and antiviral coating, designed to capture PM2.5, pollen, pet dander, smoke particles, and dust aerosols while inhibiting influenza A virus, E. coli, and Staphylococcus aureus. It is available as a finished filter from Oltaven, a manufacturer with over 20 years of filtration experience. The 360° pleated design maximises airflow and CADR, making it suitable for high-end car air purifiers, compact home or desktop purifiers, and maternal-infant health appliances.

From Media to Finished Filter

Media selection is only the starting point. The finished filter’s efficiency, resistance, and dust-holding capacity are determined by how that media is pleated, framed, and sealed. A high-efficiency media can lose performance if pleats are too tight or the frame allows air to bypass. Conversely, careful forming can enhance media performance and extend service life.

At Oltaven, we sell finished filters, not just media. Our engineers consider the entire construction—pleat geometry, frame rigidity, seal integrity, and coating uniformity—to deliver a filter that meets your device’s airflow and efficiency targets. This principle-driven approach ensures that every cylindrical filter we produce performs as specified in real-world applications.

What Decides Finished Performance

Three factors primarily govern the performance of a finished cylindrical filter: pleat design, frame and seal integrity, and the uniformity of the antibacterial/antiviral coating.

Pleat design: The number and height of pleats affect the filter’s surface area, which in turn influences efficiency, resistance, and capacity. More pleats increase surface area, lowering resistance and raising dust-holding capacity, but if pleats are too dense, airflow can be restricted and pleats may collapse under pressure. Our 360° high-density pleating balances these factors to maximise CADR while maintaining low resistance.

Frame and seal integrity: The frame provides structural support and prevents air bypass. A rigid frame maintains pleat spacing and protects the media during handling and installation. Sealing ensures that all air passes through the media, not around it. We use automated processes to apply consistent adhesive seals that withstand operating pressures and temperature variations.

Coating uniformity: The antibacterial and antiviral coating must be applied evenly across the media to ensure consistent inactivation of microorganisms. Our coating processes—such as silver-ion loading and copper-zinc composite treatments—are carefully controlled to achieve uniform distribution without blocking airflow. This is validated through testing in our CNAS-accredited laboratory.

Together, these forming decisions determine the finished filter’s efficiency (e.g., PM2.5 filtration), resistance (pressure drop), and capacity (dust holding). By controlling each step, we deliver filters that meet specified performance and reliability standards.

Applications

The cylindrical antibacterial and antiviral filter is designed for applications where space is limited but high airflow and efficiency are required. Typical uses include:

• High-end car air purifiers: The compact cylindrical shape fits easily into vehicle cabins, providing clean air for passengers.
• Home and desktop purifiers: Ideal for small appliances where a 360° intake maximises CADR.
• Maternal and infant health appliances: The antibacterial and antiviral properties help create a cleaner environment for sensitive users.
• Commercial air disinfection machines: Suitable for continuous operation in public spaces.

With a mite removal rate of up to 82.4% (tested according to FZ/T01100-2008 by a national authority), this filter also supports allergy-sensitive environments.

Technical Specifications

The Oltaven Factory and Certifications

Oltaven brings over 20 years of filtration expertise to every project. Our OEM/ODM capabilities have led to the development of more than 1,000 filtration solutions for clients worldwide. Our 50,000 m² manufacturing plant includes six cleanrooms totalling 20,000 m², providing a controlled environment for high-quality production.

We operate a CNAS-accredited laboratory, enabling us to test filtration efficiency, dust-holding capacity, and resistance in-house. Our quality management systems are certified to IATF 16949 (obtained in 2024) and ISO 9001, ISO 14001, and ISO 45001. Products comply with REACH and RoHS regulations, and we can provide compliance documentation. With automated production lines and monthly capacity in the millions, we ensure consistent quality and timely delivery.

Our location in Zhongshan, Guangdong, China, positions us as a reliable partner for global customers across Europe, the US, Japan, and Korea.

OEM/ODM Workflow

We follow a structured process to bring your custom filter from concept to production:

1. Inquiry and requirements: Share your device model, dimensions (or drawing), airflow, operating conditions, and quantity.
2. Solution design: Our engineers propose media, pleat configuration, frame, and coating options to meet your performance targets.
3. Sampling: We produce samples (typically 7–15 working days for custom specifications) with test reports for your evaluation.
4. Validation and approval: You test samples; we refine as needed until specifications are met.
5. Production: After sample approval, mass production begins (typically 25–35 days for custom orders).
6. Quality assurance: Each batch undergoes IQC, IPQC, and OQC inspections, and retains samples for traceability.

Start a Custom Project

To receive a tailored quote, please provide the following details:

• Device or vehicle model (if applicable)
• Required dimensions or a drawing
• Airflow or water flow requirements
• Operating conditions (temperature, humidity, etc.)
• Estimated order quantity

Our team will respond promptly with a proposal. Contact us to discuss your filtration needs and how Oltaven can support your next project.