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 air or water is filtered, there are certain requirements for material. Nowadays, needle-punched non-woven fabric is widely used, which requires not only good filtering effect, but also environmental protection. Filtration needle punched nonwoven fabric is a kind of nonwoven fabric. It is made of polyester and polypropylene fibers. It is suitable for hot rolling after many times of needling. According to different processes and different materials, it is made into various kinds of filter cloth.
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。
The filter needle-punched non-woven fabric can be used not only in combination with filter machinery or dust removal equipment, but also in filter bags for separating dust in gases. Because of the requirement of certain pulling force, some manufacturers will use silk mesh in non-woven fabric to further strengthen the load-bearing capacity of filter bags. Filtration nonwoven fabrics are also widely used, such as masks, ventilators, medical equipment, air conditioners, dust collectors and other places requiring primary filtration can be used.