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Celrith Aluminum Pre-Filter is a washable metal mesh filter built to capture coarse dust, lint, fibres and oil smoke before they reach coils, fans and downstream filters. It is made with a multi-layer corrugated aluminium or stainless steel mesh in an aluminium, stainless steel or ABS frame. It suits commercial HVAC, industrial ventilation, cleanroom pre-filtration and oil smoke exhaust systems, and is available in standard 1-inch (21 mm) and 2-inch (46 mm) depths with custom sizes.
Air handling systems pull in more than air. In urban and industrial settings, intake air carries coarse dust, pollen, insects, leaves and fibrous debris. In kitchens and manufacturing plants, oil smoke and sticky aerosols add a greasy film that bonds to surfaces. These contaminants are abrasive, adhesive and often moist. When they settle on heat exchange coils, they insulate the fins and reduce heat transfer. When they coat fan blades, they unbalance rotating parts. When they reach secondary filters, they shorten the service life of finer media.
The problem is not only the contaminant itself but the load it places on everything behind it. A pre-filter that clogs quickly or cannot be cleaned becomes a maintenance burden. A pre-filter that collapses in humid or high-temperature exhaust adds risk. Celrith addresses these conditions with a 100% metal construction that resists corrosion and high temperatures, can be washed repeatedly, and holds a large amount of dust before pressure drop becomes excessive.
Coarse particulate and oil mist create three measurable loads. First, airflow resistance rises as debris accumulates, forcing fans to work harder or reducing delivered air volume. Second, heat transfer efficiency falls when coils are fouled, increasing energy consumption. Third, downstream filters load faster, which raises replacement frequency and cost. In high-humidity or high-temperature exhaust streams, disposable cardboard or synthetic pre-filters can soften, swell or lose shape, allowing bypass and adding to the maintenance cycle.
For facility teams, the operational load is just as real: frequent filter changes, disposal costs and downtime. A washable metal pre-filter changes that equation by intercepting contaminants early and allowing routine cleaning instead of constant replacement.
Celrith Aluminum Pre-Filter uses a multi-layer corrugated expanded aluminium mesh or stainless steel mesh, with the number of layers customisable to match the contaminant load. The frame is available in aluminium profile, stainless steel or ABS plastic. This all-metal core is fire retardant, resistant to acid and alkali, and suitable for repeated water washing. The pleated mesh structure creates a large dust-holding surface while keeping initial resistance low.
The result is a clear contrast with disposable pre-filters: instead of replacing the filter when it loads, maintenance staff can rinse or wash the mesh and return it to service. That reduces consumable cost and waste, and it keeps the air path open between scheduled maintenance intervals. For oil smoke applications, the metal mesh can be cleaned with appropriate degreasers, helping to maintain capture efficiency over time.
| Item | Detail |
|---|---|
| Product name | Aluminum Pre-Filter / Metal Mesh Filter |
| Core filter media | Multi-layer corrugated expanded aluminium mesh or stainless steel mesh (layer count customisable) |
| Frame material | Aluminium profile / stainless steel / ABS plastic |
| Physical properties | Low initial resistance, fire retardant, acid and alkali resistant, washable and reusable |
| Typical applications | High-humidity/high-temperature industrial exhaust, commercial central AC pre-filtration, plant insect and leaf screening, acid/alkali workshop ventilation |
| Standard depths | 1 inch (21 mm) / 2 inch (46 mm) |
| Common sizes (W × H × D) | 12×24×1 in (287 × 592 × 21 mm); 24×24×1 in (592 × 592 × 21 mm); 12×24×2 in (287 × 592 × 46 mm); 24×24×2 in (592 × 592 × 46 mm) |
| Customisation (OEM/ODM) | Custom length, width, thickness and mesh layer count; produced in a 50,000 m² plant with ISO/IATF16949 certification |
Celrith Aluminum Pre-Filter is used across commercial and industrial sectors where coarse contamination and washability matter. Typical users include:
Celrith products are manufactured in a 50,000 m² facility in Zhongshan, Guangdong, China, which includes six cleanrooms totalling 20,000 m². The company holds ISO 9001, ISO 14001 and ISO 45001 certifications, and added IATF 16949 automotive quality management certification in 2024. Products comply with REACH and RoHS environmental regulations, and compliance documents are available on request.
Quality control runs from incoming material inspection (IQC) through in-process checks (IPQC) to outgoing inspection (OQC). The on-site laboratory is CNAS-accredited and can issue test reports for filtration efficiency, dust holding capacity and resistance. With more than 20 years of filtration experience and exports to Europe, the US, Japan and South Korea, Celrith supports OEM/ODM projects with custom dimensions, structures, media grades, frame materials, logos and packaging. Multiple automated production lines provide monthly capacity in the millions of pieces.
To receive a quotation or discuss a custom specification, please share the following details with our team:
Send your requirements through our contact page and we will respond promptly with the next steps.
It captures coarse dust, lint, fibres, insects, leaves and oil smoke particles. The multi-layer metal mesh is designed to intercept these contaminants before they reach coils, fans or finer filters. It is typically used as a first-stage filter in HVAC, industrial ventilation and oil smoke exhaust systems.
The Celrith Aluminum Pre-Filter is a coarse-grade filter intended for pre-filtration. It protects downstream components and extends the service life of finer filters. For specific efficiency requirements, please contact us with your application details so we can recommend the appropriate mesh configuration.
Yes. We support OEM/ODM customisation of length, width, thickness, mesh layer count, frame material (aluminium, stainless steel or ABS) and packaging. Standard depths are 1 inch (21 mm) and 2 inch (46 mm). Share your drawing or sample requirements for a tailored solution.
Cleaning frequency depends on contaminant load and operating conditions. In typical commercial HVAC applications, inspect monthly and wash when pressure drop rises noticeably. The metal mesh can be washed repeatedly; with proper maintenance, the filter can remain in service for an extended period. Replace if the mesh is damaged or deformed.
For standard sizes, MOQ is typically 500–1000 pieces. Custom sizes have flexible MOQ based on specification. Standard stock items ship in 7–10 days; custom orders usually take 25–35 days depending on quantity and complexity. Our 50,000 m² plant supports large-volume orders.
Yes. Standard-size samples are available free of charge (freight collect). Custom samples may incur a fee, which can be credited against a bulk order. Sample lead time is usually 3–7 working days. Our CNAS-accredited lab can also provide performance test reports to support your evaluation.
Celrith products comply with REACH and RoHS regulations, and the company holds ISO 9001, ISO 14001, ISO 45001 and IATF 16949 certifications. We can provide compliance documents such as test reports and certificates of conformity. Our products are regularly exported to Europe, the US, Japan and South Korea.