| 摘要 |
An anti-haze mask designed for protection against fine atmospheric particulate matter (PM), i.e. PM2.5, consists of a silicone mask 1, a filter mounting base 2, a PM2.5 filter 3, fixing strap fasteners 4, an expiratory/output valve (5, Fig 4), a cover (8, Fig 4), an inhaling/input valve (9, Fig 4) and a filter layer (10, Fig 4). The cover is curved and the filter mounting base is symmetrically disposed thereon, the filter mounting base being equipped with the inhaling valve and PM2.5 filter. The upper cover body of the filter mounting base is equipped with the expiratory valve and the fixing strap fasteners. The filter is made up of four layers (i) a nonwoven fabric layer, (ii) an activated carbon layer, (iii) an electrostatic textile fibre layer and (iv) an electrostatic filtering membrane. |
