The Zanxis washable activated carbon sponge filter is a flexible polyurethane foam filter with fixed activated carbon, designed to remove oil, odors, formaldehyde, benzene, and ammonia from air. It combines coarse particle interception with gas-phase adsorption and is intended for air purifiers, fresh air systems, car cabin filters, central AC return air, and industrial vacuums. Zanxis manufactures this filter in Zhongshan, Guangdong, China, and supports full OEM/ODM customization. This page focuses on the parameters worth verifying and how samples and lab reports confirm them.
| Item | Detail |
|---|---|
| Product name | Washable Activated Carbon Sponge Filter |
| Core base material | Polyurethane sponge |
| Core adsorbent | Premium powdered or fine granular activated carbon, fixed by a special process |
| Core purification performance | Coarse filtration of large particles (hair, dust) plus strong adsorption of harmful gases such as formaldehyde (HCHO), benzene, and ammonia |
| Physical structure advantages | Washable and reusable, very low air resistance, high flexibility for easy cutting, good air permeability |
| Main application terminals | Air purifier pre-filter layer, fresh air ventilation system pre-filter, car air conditioning filter, central air conditioning return air inlet, industrial vacuum cleaner |
| Specification and size customization | Full OEM/ODM flexible customization. Provides stamping and forming services for various thicknesses (e.g., 3 mm–50 mm), pore densities (PPI), and external dimensions. |
| Quality certification system | Produced in the company’s 20,000 m² clean workshop; the company holds ISO 9001/14001 environmental and quality system certifications and IATF 16949 certification. |
Before a filter is approved for a device, several parameters should be confirmed against the application. For the Zanxis washable activated carbon sponge filter, the following values are typically verified during development:
These values form the basis of a specification that can be tested and agreed upon before mass production.
Zanxis follows a structured sample verification process to ensure the filter meets the agreed parameters. The typical workflow is:
This workflow ensures that the final product matches the verified sample and reduces the risk of performance gaps.
The Zanxis washable activated carbon sponge filter is constructed from a polyurethane sponge base with activated carbon fixed throughout the foam matrix. This construction provides a large contact area for gas adsorption while maintaining an open-pore structure for low air resistance. The foam is flexible and can be cut or stamped into various shapes, including complex outlines, without crumbling. The filter can be washed with water and reused, which reduces consumable costs compared to non-washable filters.
In use, the filter serves as a combined pre-filter and gas-phase filter. It captures larger particles such as hair and dust, protecting downstream filters, while the activated carbon adsorbs formaldehyde, benzene, ammonia, and other odorous gases. Typical applications include the pre-filter layer in air purifiers, pre-filtration in fresh air systems, car cabin air filters, central air conditioning return air grilles, and industrial vacuum cleaners. The filter is not intended for medical use.
For optimal performance, the filter should be sized to the application’s airflow and replaced or washed according to the manufacturer’s recommendations. Zanxis can provide guidance on wash cycles and replacement intervals based on the specific use case.
Zanxis operates a CNAS-accredited laboratory that issues test reports for filtration efficiency, dust holding capacity, and resistance. These reports allow customers to verify the performance of the washable activated carbon sponge filter against their requirements. The company’s quality management system is certified to ISO 9001, ISO 14001, and ISO 45001, and in 2024 it obtained IATF 16949 certification for automotive quality management.
Production takes place in a 50,000 m² plant, which includes six clean workshops totaling 20,000 m². The filter is manufactured in this controlled environment to maintain consistency. Quality control follows a three-stage process: incoming material inspection (IQC), in-process inspection (IPQC), and outgoing quality control (OQC). Key parameters such as basis weight, thickness, and resistance are checked against the approved specification. Products comply with REACH and RoHS regulations, and compliance documents can be provided upon request. Zanxis has over 20 years of experience in filtration and exports to Europe, the United States, Japan, and South Korea. The company supports OEM/ODM projects and has developed more than 1,000 filtration solutions.
To request samples and test reports for the Zanxis washable activated carbon sponge filter, please provide the following information to contact us:
Our team will respond with a proposal, sample lead time, and test report availability. For B2B customers with a clear purchase intention, stock samples can be provided free of charge (freight collect); custom samples may incur a fee, which is deductible from the bulk order.
Yes. Zanxis has a CNAS-accredited laboratory that issues test reports for filtration efficiency, dust holding capacity, and resistance. These reports are available with samples or upon request for qualified customers.
Sample preparation typically takes 5–7 working days after the specification is confirmed. Validation time depends on the customer’s testing process; we provide samples with test reports to support your evaluation.
The MOQ is typically 5,000–10,000 pieces for standard specifications and 10,000 pieces for custom specifications, depending on material and tooling. Please contact us with your requirements for an exact quote.
Bulk lead time is usually 25–35 days after order confirmation and sample approval. Our multiple automated production lines allow flexible scheduling during peak seasons.
The filter is washable and reusable. Replacement or washing frequency depends on the application and operating conditions. We can provide guidance based on your specific use case and test data.
Yes. We support OEM/ODM customization, including thickness (3 mm–50 mm), pore density (PPI), dimensions, shape, and packaging. Provide a drawing or sample, and we will propose a specification.
Please provide the device or vehicle model, required size or drawing, airflow or water flow, operating conditions, and estimated quantity. We will respond with a proposal and sample lead time.
For B2B customers with a clear purchase intention, stock samples are free (freight collect). Custom samples may incur a fee, which is deductible from the bulk order. Contact us to discuss your sample needs.