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Thesvin dust bag with interchangeable cover is a multi-layer PP meltblown filter bag designed for automatic dust collection bases of robot vacuums, handheld wireless vacuums, and commercial vacuum bins. It captures fine dust (PM2.5), dust mites, pollen, and hair, protecting the motor and preventing secondary exhaust pollution. It suits OEM/ODM buyers and brand owners who need a precise fit, easy sealing, and consistent filtration performance.
Fitment starts with the cover. The bag uses a pluggable cover design—available in hard cardboard or eco-friendly injection-molded plastic—that clicks into the dust inlet of the host device. Because the cover is the interface, it can be customized to match the host’s port geometry, latch points, and insertion depth, so the bag seats firmly without play.
Sealing is achieved through a sliding handle that automatically closes the bag when removed. This keeps dust inside during disposal and prevents leakage at the interface. The bag’s outer dimensions and the cover’s locking features are made to your device’s original specifications, whether you supply a 3D model, a drawing, or a physical sample. This approach is suitable for robot vacuum bases from brands such as iRobot, Ecovacs, Roborock, Xiaomi, Dreame, and Dyson, as well as handheld vacuums and commercial bins.
For engineers, the key is that the bag does not rely on a universal adapter. The cover, frame, and bag body are developed as one set, so airflow paths and sealing surfaces align with the host’s design. This reduces bypass leakage and maintains the vacuum’s rated suction.
The filter media is a multi-layer composite PP (polypropylene nonwoven + meltblown) with an optional antibacterial filter cotton layer. This structure captures fine dust particles, dust mites, pollen, hair, and other common household allergens. By trapping these particles inside the bag, it prevents them from being re-emitted into the room air, which is important for allergy-sensitive users.
The media is designed with high porosity and low airflow resistance, so the vacuum motor does not have to work harder as the bag fills. High dust-holding capacity means the bag can store a large volume of debris before needing replacement, and suction remains strong throughout use. An optional activated carbon layer is available for odor control in households with pets or in commercial settings.
This bag is intended for dry dust and debris. It is not designed for liquids or wet messes. For users with specific filtration requirements, the media grade can be customized—please inquire with your target efficiency and operating conditions.
| Item | Detail |
|---|---|
| Product name | Dust bag with interchangeable cover (for handheld vacuums and robot vacuum auto-dust-collection bases) |
| Core material | Multi-layer high-precision composite PP (polypropylene nonwoven + meltblown) / antibacterial filter cotton |
| Filtration function | High-precision interception of fine dust (PM2.5), dust mites, pollen, hair, and household allergens; prevents secondary exhaust pollution |
| Airflow properties | High-porosity breathable design, very low operating airflow resistance, high dust-holding capacity, does not compromise motor suction |
| Main applications | Automatic dust collection bases for robot vacuums, handheld wireless vacuums, commercial vacuum bins |
| Customization | 100% customized to device dimensions. Cover options: hard cardboard or eco-friendly injection-molded plastic. Sliding auto-seal and activated carbon odor-control versions available. |
| Company certifications | 50,000 m² modern clean production facility and CNAS-accredited testing laboratory. ISO 9001, ISO 14001, and IATF 16949 quality management systems. |
Thesvin operates under IATF 16949 (obtained in 2024) and ISO 9001, ISO 14001, and ISO 45001 management systems. Dimensional consistency is controlled through IQC, IPQC, and OQC at every stage—from incoming material inspection to in-process checks and outgoing sampling—so each batch matches the approved sample.
Our CNAS-accredited laboratory can issue test reports for filtration efficiency, dust-holding capacity, and airflow resistance. The 50,000 m² production base includes 20,000 m² of clean rooms across six workshops, supporting stable output and contamination control. We have over 20 years of experience in filtration and export to Europe, the US, Japan, and Korea, and our products comply with REACH and RoHS requirements.
For standard specifications, lead time is typically 7–15 days; customized orders with new tooling usually take 30–45 days after sample approval. MOQ for standard items is 5,000–10,000 pieces; for custom designs, MOQ is negotiated based on complexity.
To get an accurate quote and fit confirmation, please provide: your device or vehicle model, a drawing or the old part (photo with dimensions), airflow or water flow requirements, operating conditions (temperature, dust type), and estimated quantity. Our engineering team will review and respond with a proposal. Contact us to start the conversation.
Thesvin dust bags are custom-developed to your device’s dimensions, cover interface, and latch points. We can match the pluggable cover to your host’s dust inlet using a drawing, 3D model, or physical sample. This ensures a firm, sealed fit for brands such as iRobot, Ecovacs, Roborock, Xiaomi, Dreame, and Dyson.
Yes. You can send us the old dust bag or cover, and our engineers will measure it and replicate the interface. This is often the fastest way to ensure compatibility. We will confirm dimensions and features before proceeding.
The multi-layer PP meltblown media captures fine dust (PM2.5), mites, pollen, and hair with high efficiency. Dust capacity depends on bag size; typical household bags hold 2.5–3 L. For specific efficiency data, we can provide test reports from our CNAS-accredited laboratory.
Yes. We offer full customization of bag dimensions, cover type (cardboard or plastic), sealing method (sliding auto-seal), media grade (including activated carbon for odor control), logo printing, and packaging. Our team works with your specifications to deliver a turnkey solution.
MOQ for standard specifications is 5,000–10,000 pieces; custom designs are negotiated based on complexity. We provide samples for fit and function testing before mass production. Sample lead time is typically 7–10 days, depending on customization.
Standard items ship in 7–15 days. Custom orders, including new tooling, usually take 30–45 days after sample approval. We will confirm the schedule based on your order quantity and specifications.
Replacement frequency depends on usage and dust volume. For typical household use, the bag can last 30–60 days. The sliding handle seals the bag automatically for clean disposal. We recommend replacing when suction drops noticeably or when the bag is full.