... Laser welding, Hand welding, Gas shielded welding & Robot welding to filtrate the fumes, dusts & toxic gas. PA--1200S Single arm welding odor extraction 1. Strict welding & ... filter life of less power. 4. PA-1200S filtration system consist of three parts, they are fire protector, HEPA ... 6 monthsChemical molecular, Oxidant & Active carbon adsorb noxious gas.Average filtration rate≥99.7%It will be a ...