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Thesvin Dust Box HEPA Filter is a replacement filter for robot vacuum cleaners, handheld vacuums, mattress mite removers, car mini vacuums and wet-dry vacuums. It captures PM2.5, fine dust, dust mites, pollen and pet dander before exhaust air leaves the dust box, helping prevent secondary contamination. It is designed for OEM and ODM customers who need a filter that fits their specific dust box geometry, seals at the edges and maintains airflow. Thesvin manufactures these filters in Zhongshan, Guangdong, China, using PTFE membrane or composite PP meltblown media.
Fitment is the first engineering constraint for a dust box filter. The filter must sit in the dust box without gaps, align with the housing, and seal along its perimeter so that air passes through the media rather than around it. Thesvin approaches every project from the host device outward: the dust box cavity defines the outer dimensions, the housing ribs and ledges define the locating features, and the airflow path defines the media area and frame thickness.
Thesvin customises the outer frame and dimensions to match the dust box. Options include an injection-moulded frame in environmentally friendly plastic and an edge-wrapped sealing treatment to close the gap between filter and housing. The filter can be built as a washable PTFE-coated version for repeated cleaning, or as a composite PP meltblown version for standard replacement cycles. Because every robot vacuum and handheld vacuum has a different dust box, Thesvin works from a drawing or an original part to reproduce the interface rather than forcing a universal size.
For OEM projects, Thesvin can adjust frame material, frame colour, media grade and packaging. The goal is a drop-in fit: the filter locates positively, seals at the edges, and does not interfere with the dust box lid or latch. If you are replacing an existing filter, sending the old part is often the fastest way to confirm the interface.
The filter media is selected for fine-particle capture in vacuum cleaner exhaust streams. PTFE membrane and composite PP meltblown media are both available, and Thesvin can supply moisture-resistant and antibacterial filter materials. The filter is intended to intercept PM2.5, fine dust, dust mites, pollen and pet dander, reducing the fine particles that would otherwise be blown back into the room.
Airflow performance matters as much as capture. A high-porosity, breathable design keeps resistance low so the motor does not lose suction and battery runtime is not unnecessarily shortened. Thesvin balances media efficiency and pressure drop for each device, because a filter that loads too quickly or restricts flow will reduce cleaning performance even if its particle capture is high. The washable PTFE-coated option allows the user to rinse and reuse the filter, while the composite PP version is suited to standard replacement intervals.
Typical applications include smart robot vacuums, cordless handheld vacuums, mattress mite removers, car mini vacuums and wet-dry floor cleaners. Each application has its own dust loading and airflow pattern, so Thesvin reviews the operating conditions before recommending a media grade.
| Item | Detail |
|---|---|
| Product name | Robot vacuum cleaner / handheld vacuum filter |
| Core filter material | High-precision PTFE (polytetrafluoroethylene microporous membrane) / composite PP (polypropylene meltblown) and other moisture-resistant, antibacterial media |
| Core filtration function | Effectively intercepts PM2.5, fine dust, dust mites, pollen and pet dander inside the vacuum, preventing secondary contamination from exhaust air |
| Physical and flow characteristics | High-porosity breathable design with very low operating resistance; does not waste motor suction and supports battery runtime |
| Main end applications | Smart robot vacuums, cordless handheld vacuums, mattress mite removers, car mini vacuums, wet-dry floor cleaners |
| Frame and dimension customisation | 100% customised to the dust box dimensions of the device. Environmentally friendly injection-moulded frame, edge-wrapped sealing treatment, and scalable OEM production of washable PTFE-coated versions |
| Company certification system | 50,000 m² modern production base and a national CNAS testing centre. The company follows ISO 9001, ISO 14001 and IATF 16949 quality management system standards |
Thesvin operates a 50,000 m² production base in Zhongshan, Guangdong, China, including 6 clean rooms totalling 20,000 m². The company has more than 20 years of filter development and manufacturing experience and has exported to Europe, the United States, Japan and Korea for over 20 years. It holds IATF 16949 (obtained in 2024), ISO 9001, ISO 14001 and ISO 45001 certifications. Products comply with REACH and RoHS, and compliance documents can be provided.
Dimensional consistency is controlled through IQC, IPQC and OQC: incoming material inspection, in-process inspection and outgoing quality control. The company's own laboratory is CNAS-accredited and can issue test reports for filtration efficiency, dust holding capacity and resistance. Multiple automated production lines support monthly output of millions of pieces. For OEM/ODM projects, Thesvin offers customisation of size, structure, filter grade, frame material, logo and packaging, and has developed more than 1,000 filtration solutions.
To get a fitment check and a quotation, send the device model, a drawing or the old filter, the expected airflow or suction level, operating conditions, target quantity and packaging requirements. Thesvin will confirm the interface and recommend a media grade. Contact Thesvin to start your inquiry.
Fitment depends on your dust box geometry. Thesvin customises the frame and dimensions to the dust box and can add edge-wrapped sealing so the filter seats without gaps. Send a drawing or an original part and Thesvin will confirm the interface before sampling.
Yes. An original filter from the device is often the fastest way to confirm dimensions, frame thickness and locating features. Thesvin can work from the old part and reproduce the interface for a drop-in fit.
The filter is designed to intercept PM2.5, fine dust, dust mites, pollen and pet dander. Efficiency depends on the selected media grade, which is confirmed during sampling. Thesvin's CNAS-accredited laboratory can test filtration efficiency, resistance and dust holding capacity.
Yes. Thesvin provides samples for fit and airflow validation. To quote, send the device model, drawing or old part, expected airflow, operating conditions and target quantity. Sample and quotation terms follow the agreed project specification.
MOQ depends on the specification and customisation level. Share your target quantity and packaging requirements, and Thesvin will confirm the MOQ for your project.
Lead time depends on whether the project requires new tooling or uses an existing design. After sample approval, Thesvin confirms the production schedule with the order. Multiple automated lines support monthly output of millions of pieces.
Replacement interval depends on use and dust loading. The washable PTFE-coated version can be rinsed and reused, while the composite PP version is suited to standard replacement cycles. Thesvin reviews your operating conditions to recommend a suitable interval.
Yes. Thesvin supports OEM/ODM customisation of size, structure, filter grade, frame material, logo and packaging. Provide your device model and interface data, and Thesvin will propose a specification. Contact Thesvin to start your inquiry.