Thesvin Flat Activated Carbon Filter Mesh for Odor Removal

Thesvin flat activated carbon filter mesh is a custom-made odor removal filter designed to fit directly into air purifiers, fresh air systems, vehicle HVAC units, central air handling units, vacuum cleaners and industrial exhaust pretreatment. It adsorbs formaldehyde, benzene, ammonia and other volatile organic compounds (VOCs) from the air stream. It is intended for appliance and HVAC manufacturers, distributors and industrial users who need a drop-in carbon filter matched to their existing frame or duct dimensions.

Fitment and Interface

Fitment is the starting point for every Thesvin flat carbon filter. The filter is built as a flat panel with a frame that locates into the host device or duct slot, so the sealing face and outer dimensions must match the equipment interface. We manufacture to your drawing or original part: length, width and thickness are made to your specified dimensions, and the frame can be produced in paper, aluminum, plastic or galvanized steel to suit the mounting method and required rigidity.

The flat format suits applications where the filter slides into a guide rail, sits in a cassette, or is held against a gasket face. Because the panel is rigid, it maintains its shape under airflow and keeps the carbon bed evenly distributed across the face. For equipment with limited depth, we can adjust the activated carbon loading and media form to stay within the available space without changing the outer envelope.

We also offer alternative carbon media structures to match different pressure and depth requirements: honeycomb activated carbon blocks (sintered carbon), honeycomb with plastic substrate, corrugated paper honeycomb, and cylindrical carbon filters. For flat panel fitment, the honeycomb and flat mesh formats are the usual choices. Our engineering team reviews the interface drawing before tooling, so the frame, gasket area and dimensions are confirmed before production.

What It Filters

The filter uses high-performance activated carbon as its core material, selected for high adsorption capacity. It targets volatile harmful gases including formaldehyde, benzene and ammonia, as well as common odors such as hydrogen sulfide and other VOCs. The carbon loading and media type can be adjusted to the target gas concentration and required service life.

Typical applications include household and commercial air purifiers, fresh air ventilation systems, vehicle air conditioning filters, central air conditioning circulation systems, vacuum cleaner filters and industrial exhaust gas treatment. In each case, the flat panel format allows the carbon stage to be integrated as a separate odor-removal layer, either as a standalone filter or as part of a multi-stage filtration train.

The filter is not designed as a particulate HEPA stage; its role is gas and odor adsorption. It can be combined with a particulate pre-filter in the same housing when the equipment layout allows. We recommend confirming the gas species and concentration with our team so that the carbon type and loading can be matched to the application.

Dimensions and Technical Data

Three Steps to the Right Part

1. Confirm the fitment envelope. Measure the length, width and thickness of the filter slot, note the frame type and how the filter is retained, and check the available depth for the carbon bed. A photo of the old part next to a ruler is often enough for us to start.
2. Define the gas target and operating conditions. Tell us the gases or odors to be removed, the airflow, temperature, humidity and expected replacement interval. This determines the activated carbon type, iodine value range and loading.
3. Approve the sample and place the order. We produce a sample to your drawing or old part, confirm fitment and performance, then proceed to production with agreed packaging and delivery terms.

Delivery and Quality Assurance

Thesvin operates a quality management system certified to IATF 16949 (obtained in 2024), with IQC, IPQC and OQC controls applied through incoming inspection, in-process checks and outgoing inspection to maintain dimensional consistency from batch to batch. Our in-house laboratory is CNAS-accredited and can issue test reports for filtration efficiency, dust holding capacity and resistance, as well as gas adsorption performance. The production base covers 50,000 m², including six clean workshops totaling 20,000 m². We also hold ISO 9001, ISO 14001 and ISO 45001 certification, and products comply with REACH and RoHS requirements with supporting documentation available.

Standard specifications typically ship within 7–15 days; OEM custom orders generally run 25–35 days, and large orders can be optimized through production scheduling. Activated carbon filters are packed in individual PE bags and cartons to prevent odor pickup and moisture during transport. Recommended storage is 5–35 °C at ≤70% relative humidity, away from solvents and paints.

Send Thesvin Your Drawing or Old Part

To receive a quotation, send us the device or vehicle model, the filter size or a drawing, the airflow or water flow (if applicable), the operating conditions (gas type, temperature, humidity), and the required quantity. If you do not have a drawing, a photo of the old part with dimensions works. Contact us through our contact page and our team will respond with a fitment review and quote.