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Thesvin paint mist filter is a dry-type labyrinth honeycomb filter box designed to capture overspray paint particles in spray booths. It fits into the exhaust section of automotive refinish booths, furniture painting lines, and industrial coating rooms, where it traps sticky overspray before it reaches downstream filters or fans. It is intended for operators and maintenance teams who need a replaceable, dimensionally stable filter that seals and locates correctly in the booth structure. Thesvin manufactures this filter in Zhongshan, Guangdong, China, and supports OEM/ODM sizing to match your existing duct or frame.
Fitment starts with the exhaust section geometry, not with the filter alone. Thesvin's labyrinth honeycomb filter box is built as a self-supporting paper structure, so it holds its shape when slid into the booth's filter housing. The outer frame is made of flame-retardant kraft paper, which gives the box enough rigidity to stay square during installation and to keep the internal channels aligned with the airflow direction. Because the box is a dry filter, it does not require water curtains, pumps, or sludge handling, which simplifies the interface with the booth floor and drainage.
Locating the filter correctly matters for two reasons. First, the honeycomb channels must be oriented so that paint-laden air enters the open face and passes through the narrowing passages; if the box is inserted the wrong way, the filter will load unevenly and pressure drop will climb faster. Second, the box should sit flush against the housing stops so that air cannot bypass around the edges. Thesvin supplies modular sizes, and the box dimensions can be matched to the booth's filter slot width, height, and depth. If your booth uses a holding frame, the box can be sized to slide in without additional gaskets; if the slot is irregular, Thesvin can review a drawing or an old part and propose a matching outer dimension.
For retrofit projects, the practical fitment questions are the slot clear opening, the available depth, and the direction of airflow. Thesvin's engineering team uses these three inputs to confirm whether a standard modular box will drop in or whether a custom outer dimension is needed. The same team can advise on how many boxes fit across the booth width, so that the filter face covers the full exhaust opening without gaps.
This filter captures wet and sticky overspray paint mist generated during spray painting. As paint-laden air passes through the labyrinth channels, the narrowing passages increase the chance that paint particles contact the paper walls and adhere to them. Thesvin rates the filter at a paint mist interception efficiency of 95% or higher, and the efficiency increases as the channels narrow with accumulated paint. The filter is suitable for water-based paints, clear coats, and other high-viscosity paint mists, which are often difficult to handle in dry filtration because they remain tacky.
Because the filter is dry, it produces zero wastewater. Spent boxes can be packed and handled as dry waste according to local regulations, which avoids the water treatment and hazardous waste costs associated with wet scrubber systems. The flame-retardant kraft paper construction is intended to protect downstream equipment from sparks and to reduce fire risk in the booth exhaust. Thesvin positions this filter as a first-stage pre-filter for VOC abatement systems: it removes paint mist before air reaches medium-efficiency filter media and an activated carbon box, supporting a combined paint mist and odor control strategy. It is not a replacement for final VOC treatment, and it does not remove solvent vapors on its own.
| Item | Detail |
|---|---|
| Product type | Dry labyrinth honeycomb paint mist filter box |
| Construction | Flame-retardant kraft paper body with internal labyrinth channels |
| Paint mist interception efficiency | 95% or higher; efficiency increases as channels narrow with paint loading |
| Paint holding capacity | 12–18 kg per box |
| Airflow resistance behaviour | Slow, gradual rise in pressure drop; exhaust air volume is not rapidly reduced |
| Wastewater generation | Zero; dry operation |
| Waste handling | Spent boxes can be packed and processed as dry waste |
| Typical applications | Automotive refinish booths, furniture spray booths, machinery and equipment coating rooms |
| Paint compatibility | Water-based paints, clear coats, and high-viscosity paint mists |
| System role | First-stage pre-filter ahead of medium-efficiency media and activated carbon |
| Customisation | Modular sizes and OEM/ODM dimensions based on booth exhaust section structure |
| Manufacturing location | Zhongshan, Guangdong, China |
Note: Thesvin does not publish a single nominal airflow rating for every booth configuration because the correct face velocity depends on the booth design and the number of filter boxes installed. Provide your exhaust airflow and slot dimensions, and Thesvin will confirm the layout.
Thesvin operates under IATF 16949, the automotive quality management system certification obtained in 2024, and applies IQC, IPQC, and OQC controls across incoming materials, in-process production, and outgoing inspection. For this paint mist filter, those controls focus on dimensional consistency of the outer box and the internal channel geometry, because a box that is out of square or has collapsed channels will not seat correctly and will bypass air. Thesvin's own laboratory is CNAS-accredited and can issue test reports for filtration efficiency, dust holding capacity, and resistance, giving buyers traceable data for incoming inspection and tender documentation.
The production site in Zhongshan, Guangdong, covers 50,000 m², including six clean workshops totalling 20,000 m². The company holds ISO 9001, ISO 14001, and ISO 45001 certifications and states that products comply with REACH and RoHS environmental requirements, with compliance documents available on request. Multiple automated production lines support high-volume output, and Thesvin has more than 20 years of experience in filter development and manufacturing, exporting to Europe, the United States, Japan, and South Korea for over 20 years. OEM/ODM support covers size, structure, filter media grade, frame material, logo, and packaging, and the company has developed more than 1,000 filtration solutions. For standard specifications, MOQ is generally 50–100 pieces; for custom specifications, MOQ is typically 100–200 pieces depending on structural complexity. Standard products are usually delivered in 7–15 days, while custom orders typically take 25–35 days.
To get an accurate quotation, send Thesvin the booth or device model, the filter slot dimensions or a drawing, the exhaust airflow, the paint type and operating conditions, and the quantity you need per order. If a drawing is not available, a photo of the old filter box with its outer dimensions works as a starting point. Thesvin's team will confirm fitment, propose a modular or custom size, and reply with pricing and lead time. Contact Thesvin to start your inquiry.
Fitment depends on the clear opening and depth of your exhaust filter slot. Thesvin supplies modular sizes and can match a custom outer dimension to your booth structure. Send the slot width, height, and depth, or a photo of the old filter, and Thesvin will confirm the correct box size.
Yes. A photo of the old filter box with its outer dimensions is usually enough to start a fitment check. Thesvin will compare it with available modular sizes and recommend whether a standard box or a custom dimension is needed.
Thesvin rates this labyrinth honeycomb filter box at 95% or higher paint mist interception efficiency. Efficiency increases as paint accumulates and the internal channels narrow. The CNAS-accredited laboratory can provide test reports for efficiency, dust holding capacity, and resistance.
Each box holds 12–18 kg of paint. Replacement interval depends on paint load and booth operating hours; monitor pressure drop and inspect the box visually. Replace when the pressure drop rises significantly or when paint visibly saturates the channels.
Thesvin welcomes sample testing before bulk purchase. Standard samples can be supplied for trial on your spray line, and the CNAS laboratory can assist with test data. Contact Thesvin with your slot dimensions and paint type to arrange a sample.
For standard specifications, MOQ is generally 50–100 pieces; custom specifications typically start at 100–200 pieces depending on structural complexity. Standard products usually ship in 7–15 days, and custom orders typically take 25–35 days.
Yes. Thesvin recommends this dry labyrinth box for water-based paints, clear coats, and other high-viscosity paint mists. The dry design produces zero wastewater and avoids the sludge handling associated with wet scrubbers.
Send Thesvin your device or booth model, filter slot dimensions or a drawing, exhaust airflow, paint type and operating conditions, and the quantity you need. Thesvin will confirm fitment and reply with pricing and lead time. <a href="/en/contact">Contact Thesvin</a> to start your inquiry.