... and other pernicious gases.Used in hospital,food industries,electronic industries,paint factories.Size: 95*175MMPackage:50pcs/box ... and other pernicious gases.Used in hospital,food industries,electronic industries,paint factories.Size: 95*175MMPackage:50pcs/box ... and other pernicious gases.Used in hospital,food industries,electronic industries,paint factories.Size: 95*175MMPackage:50pcs/box ...