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Ranveth's fresh air and fresh air conditioning odor removal filter is a composite filter that pairs polypropylene (PP) media with modified activated carbon to capture fine particles such as PM2.5 and pollen while adsorbing formaldehyde, TVOC and other odors. It is designed for wall-mounted fresh air units, cabinet-style fresh air air conditioners, and residential or commercial central HVAC systems. The filter is available in efficiency classes from F7 to H13 and can be custom-built to match your exact equipment.
The performance of this filter comes from how its two functional layers are matched. The particle layer uses composite PP filter paper, chosen for its stable fiber structure and consistent efficiency across the F7 to H13 range. The odor layer uses modified activated carbon with a high iodine value, which provides a large surface area for adsorbing formaldehyde, TVOC and other volatile organic compounds. When these layers are combined, the filter delivers dual-action air treatment: fine particle removal and deep odor adsorption in a single unit.
How the layers are paired directly affects three things you care about: efficiency, airflow resistance and service life. A higher-efficiency PP layer captures more particles but can increase pressure drop; the activated carbon layer adds adsorption capacity but also contributes to resistance. Ranveth balances these factors by selecting media grades and layer configurations that meet your target efficiency without unnecessary airflow penalty. This pairing also determines how long the filter lasts: the particle layer protects the carbon from dust loading, while the carbon's iodine value and loading amount set the odor removal life. Every configuration is tested for airflow resistance and efficiency before leaving our factory, so the media pairing you approve is the performance you receive.
Because the media pairing is the core of the design, we treat it as an engineering decision rather than a catalogue choice. Our team can adjust the PP grade, the carbon type and the layer order to suit your equipment's airflow and your target service interval. This is how a filter that fits a wall-mounted fresh air unit can also be adapted for a central HVAC system with different resistance requirements.
| Item | Detail |
|---|---|
| Product name | Fresh Air System / Air Conditioner Composite Filter |
| Core filter media | Composite PP (polypropylene) filter paper + modified odor-removal activated carbon |
| Particle filtration efficiency | Covers F7 / F8 / F9 (medium efficiency) to H11 / H12 / H13 (HEPA) grades |
| Core performance | Dual action: removes fine particles (PM2.5, pollen) + deep adsorption of formaldehyde, TVOC and other odors |
| Product application categories | Fresh air system odor removal filter, fresh air air conditioner high-efficiency filter, fresh air machine HEPA composite filter |
| Main application scenarios | Household wall-mounted fresh air units, cabinet-style fresh air air conditioners, household and commercial central fresh air systems (HVAC) |
| Custom sizes and structures | Tooling and production fully according to customer's equipment requirements; supports flat panel, V-bank folded and composite configurations |
| Quality and certification | Strict airflow resistance and purification efficiency tests before shipment. Production follows ISO 9001 quality management system and IATF 16949 international certification; materials are environmentally safe. |
This filter is typically specified wherever fresh air is introduced into a living or working space and both particle and odor control are needed. Common installations include household wall-mounted fresh air units, cabinet-style fresh air air conditioners, and central fresh air systems in homes and commercial buildings. Because the media pairing can be tuned, the same filter platform is also used in air purifiers that require odor removal and in certain printing or copying equipment where ozone and odors need to be addressed. In each case, the layer build is adjusted to the device's airflow and space constraints.
For buyers, this means you can source a single filter family for multiple product lines while keeping performance consistent. Whether the end product is a compact wall-mounted unit or a larger central system, the filter's core media and layer structure are selected to match the application.
To quote a custom filter accurately, we need a few key details from you. Please provide:
With these inputs, our engineers can propose a media pairing and layer build that meets your performance and cost targets. We can also advise on the most suitable carbon type and loading based on your expected service life.
Ranveth backs its media choices with testing. Our in-house laboratory is CNAS-accredited and can issue test reports for filtration efficiency, dust holding capacity and airflow resistance. This means the media pairing we recommend is supported by measured data, not just specification sheets.
Our production base in Zhongshan, Guangdong, covers 50,000 m², including six cleanrooms totaling 20,000 m². We have been certified to IATF 16949 since 2024 and also hold ISO 9001, ISO 14001 and ISO 45001 certifications. Products comply with REACH and RoHS environmental regulations, and we can provide compliance documentation. With more than 20 years of experience in filtration and exports to Europe, the US, Japan and South Korea, we understand the documentation and consistency that international buyers require.
We welcome the opportunity to discuss your filter requirements. To request samples or a quotation, please contact our team with the details listed above. We will respond with a proposal that includes recommended media pairing, estimated performance and lead time. For standard specifications, samples can be provided; for custom builds, sample fees may apply and are refundable against bulk orders.
It uses composite PP (polypropylene) filter paper for particle removal and modified activated carbon with a high iodine value for odor adsorption. The two layers are paired to balance efficiency, airflow resistance and service life. The exact grades and layer order can be adjusted for your application.
The filter covers F7, F8 and F9 medium-efficiency grades as well as H11, H12 and H13 HEPA grades. The choice depends on your target particle removal and allowable pressure drop. We can help you select the right grade for your equipment.
Yes, we build to your dimensions and structure, including flat panel, V-bank folded and composite configurations. Provide a drawing or sample and we will match the fit. Custom tooling is available for volume orders.
Contact us with your device model, required size or drawing, airflow, operating conditions and estimated quantity. We will reply with a quotation and sample proposal. Standard samples are available; custom samples may incur a fee that is refundable on bulk orders.
For standard specifications, MOQ is typically 500–1,000 pieces; for custom builds, MOQ is generally 1,000–2,000 pieces. Sample orders can be handled flexibly. Please confirm with our team based on your exact requirement.
Stock items ship within 7–10 days. Custom orders take about 25–35 days for the first order (including tooling and samples), and repeat orders take 15–25 days. We can discuss scheduling for long-term agreements.
Under normal conditions (PM2.5 around 35 μg/m³, 8–12 hours daily operation), we recommend replacement every 6–12 months. Actual life depends on local air quality, usage and pollutant levels. We can tailor the carbon iodine value and dust holding capacity to optimise life for your region.
The activated carbon we use is food-grade/environmental grade and meets RoHS and REACH requirements. It does not contain heavy metals or formaldehyde-releasing substances. For sensitive applications, low-emission and low-dust carbon options are available. All performance data is supported by our CNAS-accredited laboratory.
