Our sintered activated carbon block filter has excellent removal capability for ozone (O₃) generated during the operation of printers and copiers, with a single pass removal efficiency of over 95%. It is made from high-quality coconut shell activated carbon formed through a high-temperature sintering process, with an iodine value exceeding 1000mg/g, capable of efficiently decomposing ozone while simultaneously adsorbing VOCs and other harmful gases. Specific performance parameters can be optimized based on the customer's actual application conditions (air volume, air speed, usage environment) and a complete testing report is provided by our national CNAS laboratory.

The sintered activated carbon block uses an integrated molding process, having three core advantages over traditional granular carbon and carbon fiber mats: 1) Stable structure with no dust shedding, preventing contamination of the printer's internal precision components; 2) Uniform carbon layer density, with no airflow short-circuiting or skewing, leading to more stable filtration efficiency; 3) Longer service life, typically lasting 6-12 months (depending on the usage environment). JND has over 20 years of experience in the development of sintered carbon and has supplied many well-known OA equipment brands from Europe, America, and Japan.

Absolutely supported. JND has a 50,000㎡ factory and a professional R&D team, capable of customizing any size, shape (square, round, irregular), thickness, and frame material (plastic, metal, paper frame, etc.) of sintered activated carbon block filters based on customer-provided drawings, samples, or printer/copier model specifications. We also offer packaging customization services (neutral packaging, customer brand packaging, color boxes, moisture-proof bags, etc.) to meet the differentiated needs of brand owners, traders, and OEM clients.

JND has passed ISO 9001, ISO 14001, ISO 45001 system certification and was granted IATF16949 and GMP certification for medical supplies in 2024. Our products also hold multiple authoritative certifications such as European BSC1, US EPA, NSF, and SOP, fully complying with European REACH, RoHS, and other environmental regulations. Our products have been bulk exported to markets in Europe, America, Japan, and South Korea, and we can provide complete compliance document support and third-party testing reports.

We have established a full-process quality control system from raw materials to finished products: 1) Possessing 20,000㎡ and 6 clean workshops to ensure a dust-free and pollution-free production environment; 2) Every batch of raw materials (activated carbon) undergoes iodine value, ash content, moisture, and other index testing; 3) The national-level CNAS accredited testing center can conduct professional tests on ozone removal rate, pressure differential, penetration rate, odor, and more; 4) Finished products follow AQL sampling standards and come with an exit inspection report. The thousand-plus filtration solutions accumulated over 20 years ensure our process maturity and quality stability.

The standard model MOQ is usually 500-1000 pieces, while the MOQ for customized models is negotiated based on specific specifications. The sampling cycle is generally 7-15 working days (depending on customization complexity), and we can provide standard samples free of charge for customer evaluations (custom samples may require a fee for molds or development costs). Batch order delivery time is usually 25-35 days, with urgent orders available for expedited production. Our monthly capacity is sufficient to stably support long-term bulk purchasing needs of brand owners.

The lifespan of the sintered activated carbon block filter mainly depends on the ozone concentration, airflow, and temperature and humidity of the usage environment. It is generally recommended to replace it every 6-12 months or based on accumulated operating hours of the equipment. We can provide lifespan test data and replacement recommendation plans based on the specific application conditions of customers. Meanwhile, JND has a professional technical service team to assist clients in product selection, operating condition matching analysis, failure analysis, and other comprehensive technical support to help clients enhance the competitiveness of their end products.