Filter in air purifiers are used to reduce the concentration of contaminants (including dust, pollen, pet dander, mold spores, dust mite feces, smoke particles and volatile organic compounds) found in the environment. These contaminants can act as allergens and pose a health risk. So, air purifier is useful and even necessary for people.
Air Filter,Voc Air Filter,Air Purifier Filters,Air Filtration System Dongguan V1 Environmental Technology Co., Ltd. , https://www.v1airpurifier.com
1. DNC system overview With the development of computer technology and the popularization of applications, the direct numerical control system (DNC) consisting of computer and numerical control machine tools in numerical control (NC) technology has been widely used. Currently, the numerical control machine tools produced abroad are no longer Then set up an ordinary NC system, only set the servo control drive