EN
Contact A dust box HEPA filter is the pleated filter that sits in the dust bin of a robot vacuum or handheld vacuum and cleans the air before it leaves the machine. This one from Oltaven uses PTFE…
FILTER MEDIA / ROLLS · SHEETS · DIE-CUT
A dust box HEPA filter is the pleated filter that sits in the dust bin of a robot vacuum or handheld vacuum and cleans the air before it leaves the machine. This one from Oltaven uses PTFE membrane or composite PP meltblown media to trap PM2.5 dust, fine particles, dust mites, pollen and pet dander, so the exhaust does not blow them back into the room. It is made for vacuum and cleaning-appliance makers, and for brands that need a washable filter shaped to their own dust box.
Filter media sets the ceiling on what a filter can do. How that media is pleated, framed and sealed sets what the finished filter actually delivers. A PTFE membrane or a composite PP meltblown layer carries the fine pores that stop small particles. In flat sheet form it is fragile, hard to handle and easy to bypass at the edges. Pleating packs a large filter area into a small dust box, and the frame and edge seal hold the pleats in place and close the gap between media and housing.
This is why Oltaven sells finished filters rather than media alone. A buyer who orders only media still has to solve pleat spacing, frame fit, edge sealing and washability. Those steps decide whether the filter keeps its efficiency after months of use, or leaks dust around the pleat pack from the first week.
Four factors shape the finished filter, and they pull against each other.
The same logic explains why two filters of identical size can differ in resistance. One may have a higher pleat count and a sealed edge, and the other may use a coarser media with open edges. Oltaven balances these factors against the motor and battery of the target machine, so the filter keeps airflow high and does not waste suction.
The filter is built for the dust boxes and air paths of cleaning appliances:
Each application has its own dust load, airflow and cleaning routine. A robot vacuum runs long cycles at low power, so low resistance matters. A handheld vacuum runs short, strong bursts, so dust capacity matters. Oltaven sizes the pleat pack, frame and media grade to the machine rather than offering one filter for all.
| Item | Detail |
|---|---|
| Product name | Robot vacuum cleaner / handheld vacuum filter |
| Core filter media | High-precision PTFE (polytetrafluoroethylene microporous membrane) / composite PP (polypropylene meltblown) and other moisture-resistant, antibacterial media |
| Core purification function | Traps PM2.5, fine dust, dust mites, pollen and pet dander inside the vacuum, preventing secondary exhaust pollution |
| Physical fluid characteristics | High-porosity breathable design with very low operating resistance; does not drain motor suction and helps extend battery runtime |
| Main end applications | Robot vacuum cleaners, handheld cordless vacuums, bed mite-removal devices, compact car vacuums, wet-and-dry floor cleaners |
| Frame and size customisation | 100% customised to the device dust box; eco-friendly injection-moulded frame, edge rubber sealing, and volume OEM production of washable media (PTFE-film version) |
| Company certification system | 50,000 m² modern production base and a CNAS-accredited testing centre; ISO 9001, ISO 14001 and IATF 16949 quality management systems |
Oltaven develops and manufactures filters on a 50,000 m² production site in Zhongshan, Guangdong, China. That work is backed by more than 20 years of filter development and manufacturing experience and more than 1,000 filter solutions developed to date, many of them OEM/ODM projects for cleaning-appliance brands. The site includes six cleanrooms with a combined area of 20,000 m², where filters are made in a controlled environment.
An in-house laboratory accredited by CNAS can issue test reports for filtration efficiency, dust capacity and resistance. The company holds ISO 9001, ISO 14001 and ISO 45001 system certifications and gained IATF 16949 automotive quality management certification in 2024. Products meet REACH and RoHS environmental requirements, and compliance documents are available. Quality control runs through IQC incoming inspection, IPQC in-process checks and OQC outgoing inspection, and multiple automated lines support monthly output in the millions of pieces.
To quote a dust box HEPA filter, tell us the device or vehicle model, the size or a drawing, the airflow or water flow, the operating conditions and the quantity you expect. Send these details through the contact page and the team will reply with a proposal. Oltaven works as a long-term manufacturing partner for appliance brands, from first sample to repeat volume orders.
Resistance depends on pleat count, pleat depth, media grade and how well the edge is sealed. A filter with more filter area and a sealed frame lets air pass through the media with less pressure drop. A filter with coarse media and open edges may show lower resistance but also lets dust bypass the media.
It starts with the device model, the dust box size or a drawing, the airflow figure and the expected quantity. Oltaven's engineering team then proposes media, pleat geometry and frame, and produces a sample for fit and airflow checks before volume production.
The media grade sets the base efficiency, and the frame and edge seal keep air from bypassing the pleat pack. Oltaven uses PTFE membrane or composite PP meltblown media and seals the edges so the finished filter performs as designed.
Yes. The PTFE-film version is designed as a washable filter with moisture-resistant media and a reinforced structure. Wash intervals and expected service life depend on the dust load and cleaning routine, and Oltaven can supply different wash-resistance levels to match the market position.
Sample quantities and MOQ are set per specification. Share the model, drawing and quantity, and Oltaven will confirm sample arrangements and a minimum order quantity for the project.
Lead time depends on whether the filter is standard or customised. After the specification is confirmed, Oltaven schedules sampling, validation and volume production on its automated lines and confirms the delivery date with the order.
Replacement or washing depends on how often the machine runs and how much dust it collects. A washable PTFE-film filter can be rinsed and reused, while a non-washable version is replaced when airflow drops. Oltaven can advise on a service interval for the target market.
Oltaven has exported filter products to Europe, the United States, Japan and Korea for more than 20 years. Products meet REACH and RoHS requirements, and compliance documents are available. To discuss a project, send your details through the contact page.