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The Thesvin washable dust box filter is a removable filter for robot vacuum cleaners and handheld vacuums that captures fine dust, PM2.5, dust mites, pollen and pet dander before air returns to the room. It is made with PTFE membrane or composite PP melt-blown media and a custom injection-molded frame that matches the host dust box. It is designed for vacuum OEMs, aftermarket brands and distributors who need repeatable fitment and washable performance.
Fitment starts with the dust box, not the filter. Thesvin builds each filter to the host dust box geometry: the frame is injection molded to the drawing, and the edge can be overmolded with a soft sealing lip that compresses against the dust box wall to stop bypass. The removable design lets the user lift the filter out for cleaning without tools, and the frame locates positively so it seats fully when refitted. Because the sealing edge is part of the frame, the filter can be washed and reused without losing its seat.
For handheld vacuums and mattress mite removers, the same approach applies: the filter outer dimensions, frame thickness and gasket profile follow the original part. If you have an existing filter, we can measure it and reproduce the interface; if you have a 3D file or 2D drawing, we build to that. This is how Thesvin keeps fitment consistent across production batches and avoids the loose fit that causes dust to bypass the filter.
The filter media is selected for fine-particle capture in vacuum airflow. PTFE membrane media provides a high-porosity, moisture-resistant barrier that traps PM2.5, micro-dust, dust mites, pollen and pet dander. Composite PP melt-blown media offers a cost-effective alternative with good dust-holding capacity. Both options are treated for moisture and antibacterial performance, so the filter can be washed and dried without losing its filtration efficiency.
Low airflow resistance is built into the media choice. A high-porosity structure lets air pass with minimal pressure drop, so the motor does not have to work harder and battery runtime is not shortened. This matters on cordless handheld vacuums, where every additional pascal of resistance reduces suction at the nozzle. The filter therefore supports sustained suction while still capturing fine particles, and it prevents the exhaust air from carrying dust back into the room.
| Item | Detail |
|---|---|
| Product name | Robot vacuum cleaner / handheld vacuum filter |
| Core filtration material | High-precision PTFE (polytetrafluoroethylene microporous membrane) / composite PP (polypropylene melt-blown) and other moisture-resistant antibacterial media |
| Core purification function | Strong interception of PM2.5, micro-dust, dust mites, pollen and pet dander inside the vacuum; prevents secondary pollution from exhaust air |
| Physical fluid characteristics | High-porosity breathable design with very low operating airflow resistance; does not waste motor suction and improves device battery runtime |
| Main application terminals | Smart robot vacuum cleaners, handheld cordless vacuums, mattress mite removers, car mini vacuums, wet-dry floor cleaners |
| Frame and size customization | 100% customised to the device dust box size. Eco-friendly injection-molded frame, edge overmolding seal, and volume production of washable media (PTFE membrane type) supported. |
| Company certification system | 50,000 m² modern production base and a CNAS-accredited testing center. The company operates under ISO 9001, ISO 14001 and IATF 16949 quality management systems. |
Thesvin holds IATF 16949 (obtained in 2024) as well as ISO 9001, ISO 14001 and ISO 45001. Dimensional consistency is controlled through IQC, IPQC and OQC: incoming media and resin are inspected, in-process frames and seals are checked, and finished filters are verified before packing. The CNAS-accredited laboratory can issue test reports for filtration efficiency, dust holding capacity and airflow resistance. The 50,000 m² production base includes 6 clean workshops totaling 20,000 m², and multiple automated lines support monthly output in the millions of pieces.
Standard specifications typically ship in 7–15 days; custom orders including mold making usually take 30–45 days after confirmation. Products meet REACH and RoHS requirements and can be supplied with compliance documents. With more than 20 years of filtration manufacturing and export experience to Europe, the US, Japan and Korea, Thesvin supports OEM/ODM customization of size, structure, media grade, frame material, logo and packaging.
To quote the washable dust box filter, send the device or vehicle model, the dust box size or a drawing, the required airflow or water flow, the operating conditions, and your target quantity. Our team in Zhongshan, Guangdong, China will confirm fitment and reply with a sample and quotation. Contact us to start.
Thesvin builds each washable dust box filter to the host dust box dimensions, using an injection-molded frame and an optional overmolded sealing edge. Fitment is confirmed from your drawing, 3D file or an old filter before production. Send the device model and dust box size, and we will check the interface.
Yes. An old filter is enough for us to measure the frame outline, thickness and seal profile. We reproduce the interface and send a sample for fitment testing on your device. This is often faster than preparing a full drawing.
The PTFE membrane and composite PP media capture PM2.5, micro-dust, dust mites, pollen and pet dander. With correct washing, the filter can be washed more than 50 times while filtration efficiency stays above 90% of its initial value, based on testing at the CNAS-accredited laboratory.
Samples can be ready in as fast as 7 days after we receive your drawing or old part. To quote, send the device model, size or drawing, airflow requirement, operating conditions and target quantity through our contact page.
Standard specifications typically have an MOQ of 5,000–10,000 pieces. Custom sizes, structures or media grades are quoted case by case based on complexity. Share your requirement and we will confirm the MOQ with the quotation.
Standard stock items usually ship in 7–15 days. Custom orders including mold making typically take 30–45 days after order confirmation. Production scheduling can prioritize urgent orders, and the ISO 9001 system supports on-time delivery.
The washable design extends service life and reduces replacement frequency. Replace the filter when suction drops noticeably after cleaning or when the media shows damage. For OEM programs, we can agree on a replacement interval that matches your device warranty and user manual.
Yes. We offer color box design, manual printing, blister trays, barcode/UPC/EAN labels and logo stamping. Packaging can be tailored for retail shelves, e-commerce or wholesale channels. Include your packaging requirements in the inquiry.