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Ranveth's Flat Panel HEPA Filter (MAX Series) is an ultra-thin, high-efficiency air filter that pairs selected media with a flat, low-resistance layer build to capture submicron particles in compact air treatment devices. It is designed for residential and commercial air purifiers, desktop purifiers, humidifier-purifier combos, dehumidifiers, and robot vacuum exhausts. The MAX Series is available in PP, PP+PET, and PTFE media, with efficiency from E11 to H14/U15 depending on the media grade chosen.
In the MAX Series, performance starts with how the media is chosen and combined. Three media families are available. Polypropylene (PP) melt-blown media provides a balanced starting point for particle capture and airflow. PP+PET composite media adds moisture resistance for devices that see humid air, such as humidifier-purifier combos and dehumidifiers. PTFE membrane media is selected when the application calls for higher efficiency or more stable pressure drop over time.
The layer build is kept flat and thin. This flat structure reduces airflow resistance and frees up space inside the device, which matters for compact purifiers and robot vacuum exhausts where every millimetre counts. Because the media and the flat layer build are matched during development, the filter can maintain low initial resistance while holding a large dust-holding capacity. That combination helps extend service life and supports stable operation as the filter loads.
Efficiency is not fixed across the series; it follows the media grade. E11 (sub-high efficiency) through H14/U15 (ultra-high efficiency) options are available, so a device platform can be tuned for different markets or performance tiers without changing the overall footprint. This is the core of the MAX Series approach: the media choice and the flat layer structure are treated as one system, and that system sets the efficiency, resistance, and life trade-off.
| Item | Detail |
|---|---|
| Product name | Flat Panel HEPA Filter – MAX Series |
| Physical structure | MAX flat profile; low airflow resistance; high space utilisation |
| Core media | PP (polypropylene melt-blown) / PP+PET composite moisture-resistant material / PTFE membrane |
| Filtration performance | From sub-high efficiency (E11) to ultra-high efficiency (H14/U15); efficiency depends on the selected media grade |
| Resistance and dust holding | Low initial resistance design with optimised fluid dynamics; large dust-holding capacity for longer service life |
| Main end applications | Residential and commercial air purifiers, desktop compact purifiers, humidifier-purifier combos, dehumidifiers, robot vacuum exhausts |
| Size and specification customisation | 100% OEM/ODM flexible customisation; any length, width, thickness, and sealing process according to customer device drawings |
| Quality certification | Produced under ISO 9001/14001 and IATF 16949; CNAS-accredited testing centre; factory control of airflow resistance, leak testing, and efficiency |
The MAX Series is used where a thin filter profile is needed without giving up particle capture. Typical installations include residential and commercial air purifiers, desktop compact purifiers, humidifier-purifier combos, dehumidifiers, and robot vacuum exhausts. In each case, the flat panel format allows the device designer to allocate space to other components while still using a HEPA-grade filter stage.
Because the media can be chosen from PP, PP+PET, or PTFE, the same flat panel format can be adapted to different operating conditions. Moisture-resistant PP+PET is relevant for devices that handle humid air, while PTFE is chosen when the priority is higher efficiency or stable resistance over the service interval. This makes the series suitable for platforms that span several models or performance tiers.
Ranveth supports 100% OEM/ODM customisation for the MAX Series. To prepare a custom build, please send:
With these inputs, our engineering team can propose a media and layer build, confirm the flat panel dimensions, and prepare samples for device fit and performance checks.
Ranveth's media choices are test-backed. Our in-house laboratory is accredited by CNAS (China National Accreditation Service for Conformity Assessment) and can issue test reports for filtration efficiency, dust-holding capacity, and resistance. This means the media and layer build proposed for your device can be verified before production.
Production takes place in a 50,000 m² plant that includes six cleanrooms totalling 20,000 m². The quality system is certified to IATF 16949 (achieved in 2024) and to ISO 9001, ISO 14001, and ISO 45001. Products comply with REACH and RoHS environmental regulations, and compliance documents can be provided.
Ranveth has more than 20 years of experience in filtration product development and manufacturing, with continuous exports to Europe, the United States, Japan, and South Korea for over 20 years. OEM/ODM support covers size, structure, media grade, frame material, logo, and packaging, and the company has developed more than 1,000 filtration solutions. Multiple automated production lines support monthly capacity in the millions of pieces. Quality control runs through IQC, IPQC, and OQC. The company is located in Zhongshan, Guangdong, China.
To request samples and a quote for the Flat Panel HEPA Filter (MAX Series), please use our contact page and include your device or vehicle model, target size or drawing, airflow or water flow requirement, operating conditions, and estimated quantity. Our team will respond with a proposed media and layer build, sample arrangements, and pricing.
The MAX Series can be built with PP melt-blown media, PP+PET composite moisture-resistant media, or PTFE membrane. The choice depends on the required efficiency grade, the operating humidity, and the resistance target for your device. Our engineering team can recommend a media and layer build based on your specifications.
Efficiency follows the selected media grade and ranges from E11 (sub-high efficiency) to H14/U15 (ultra-high efficiency). The exact efficiency is confirmed by testing in our CNAS-accredited laboratory. This allows one flat panel format to serve different performance tiers.
Yes, the MAX Series supports 100% OEM/ODM customisation. We can produce any length, width, and thickness according to your device drawing, and we can adjust the media grade and sealing process. Please share your device model and size or drawing to start the discussion.
The flat layer build is paired with media selected for low initial resistance and high dust-holding capacity. This combination helps maintain airflow while extending service life as the filter loads. The exact balance is tuned during sample development using your airflow and resistance requirements.
MOQ and lead time depend on whether the filter is standard or customised, and on the order quantity. Please contact us with your requirements so we can confirm the MOQ, sample schedule, and production lead time for your specific configuration.
Yes, samples can be prepared for device fit and performance evaluation. To arrange samples, please provide your device model, target dimensions, and airflow requirement through our contact page. Our team will confirm the sample plan and quote.
Replacement interval depends on the operating environment, dust loading, and the media grade selected. Because the MAX Series is custom-built, we can provide guidance based on your device's airflow and expected use conditions. Please share your operating conditions for a more specific recommendation.
Our CNAS-accredited laboratory can test filtration efficiency, dust-holding capacity, and resistance. These tests help verify that the selected media and flat layer build meet your device requirements before production. Test reports can be provided as part of the development process.