Filter

A filter comprising a frame, a support mesh, and a filtering netlike body;

• the frame having a peripheral frame and a plurality of support bars;
• an area surrounded by the peripheral frame and the support bars arranged at the area and connected to the peripheral frame;
• the peripheral frame combined with the plurality of support bars to define a cuboid having an internal space;
• the support mesh mounted in the space of the frame and leaning against the support bars;
• the filtering netlike body also arranged in the space of the frame and stacked over the support mesh;
• a periphery of the support mesh and a periphery of the filtering netlike body both fixed by the peripheral frame of the frame;
• wherein the frame, the support mesh, and the filtering netlike body are made from waste fiber composite;
• a total weight of the waste fiber composite is given as 100 percent;
• the waste fiber composite includes fibrous bodies with a weight percent of no less than 95% but less than 100% while the residual weight percent is at least one adhesive;
• the fibrous bodies are coming from residual or recycled waste containing fibers which are pulverized into a form of fluffy cotton wool;
• a size of the fibrous body is ranging from 0.1 mm to 50 mm and the adhesive is acrylates copolymer.