无论是过滤空气还是水，都对材质有一定的要求，现下用得比较多的是过滤针刺无纺布，不仅要求过滤效果好，还要材质环保。过滤针刺无纺布属于无纺布的一种，以涤纶、丙纶原料制造，经过多次针刺加以适当热轧处理而成，根据不同的工艺，搭配不同的材料，制成各种各样的过滤布。
Whether it is air or water filtration, there are certain requirements for the material. Currently, a lot of filter needled non-woven fabric is used, which requires not only good filtration effect, but also environmental protection of the material. Filter needle punched non-woven fabric is a kind of non-woven fabric. It is made of polyester and polypropylene fiber. It is needled for many times and hot rolled properly. According to different processes and materials, various filter fabrics are made.
过滤针刺无纺布除了能与过滤机械或除尘设备相配套使用，还能用于过滤袋，用来分离气体中的粉尘。因为要求有一定的拉力，有些厂家会采用丝线布网在无纺布中，进一步的加强过滤袋的承重能力。过滤无纺布的应用范围也非常的广，像口罩、呼吸机、医用设备、空调、除尘机等需要初效过滤的地方都可以用到。
Filter needle punched non-woven fabric can be used in combination with filter machinery or dust removal equipment, and can also be used in filter bags to separate dust in gas. Because there is a certain tension required, some manufacturers will use silk cloth mesh in the non-woven fabric to further strengthen the load-bearing capacity of the filter bag. The application range of filter non-woven fabric is also very wide, such as masks, respirators, medical equipment, air conditioners, dust collectors and other places that need primary effect filter can be used.