Olansi Healthcare Co.,Ltd
Add: 4th Floor, C1 Building, Gaosha Industry, Zhongcun Town, Panyu District, Guangzhou, China
Contact us: Sophie Huang
During the maintenance of the air filter, the color and contrast of the filter paper inside and outside the paper filter core should be carefully checked. The use of filter core, contact with the outer surface of the atmosphere on the surface of the deposit of dust, the color is gray and black, and the inner surface of the filter paper facing the intake port should still present the principal color. If the dust on the outer surface of the filter core is removed, the color of the filter paper can be revealed, and the filter element can continue to be used. When the outer surface of the filter core is removed, the color of the paper will no longer appear, or the color of the filter surface is darkened, so the filter element must be replaced.