Feature: 1. STRONG AND COMPACT: Fume absorber consumables have strong suction, three stage purification, the size is 147x186x20mm, small and compact to use 2. APPLICABLE SCENARIO: Solder fume extractor filters are suitable for welding, engraving machines, 3D printing, maintenance work, and fume extraction 3. 3 LEVEL PURIFICATION: Fume absorber filters use the pre filter layer, High Efficiency Particulate Air layer, activated carbon filter layer. The three layers of filters work together to effectively remove various air pollutants 4. EASY TO USE: Electronic soldering fume absorber filters can be directly installed and used, convenient and practical. Provide cleaner, healthier indoor air 5. ACTIVATED CARBON FILTER: The filter is made of foam and activated carbon, with superior adsorption capacity and filtration capacity, you can use with confidence Specification: Item Type: Solder Fume Extractor Filters Size: Approx. 147 x 186 x 20mm / 5.79 x 7.32 x 0.79in . Package List: 4 x Preliminary Filtration Cotton 1 x High Efficiency Particulate Air Filter 1 x Activated Carbon Filter