宝顺安 口罩 过滤棉 P95 工业 粉尘 防油 烟 呼吸阻力低 防霾口罩

 面罩佩戴调节视频 

 http://picimg.lshou.com/pic/my.tv.sohu.com/us/214166026/69468894.shtml

面罩负压测试视频

http://picimg.lshou.com/pic/www.tudou.com/programs/view/eNIUOptYZQ0/

面罩主体拆解与安装视频

http://picimg.lshou.com/pic/www.tudou.com/programs/view/aUxOnS7n2nM/

防毒过滤件安装、拆分视频

http://picimg.lshou.com/pic/www.tudou.com/programs/view/7AirimPhEa8/

防尘过滤件安装、拆分视频

http://picimg.lshou.com/pic/my.tv.sohu.com/us/214166026/69468886.shtml