HCD6817B thiab ntsaws cov dej nag cov cim hluav taws xob rau peb cov neeg siv khoom.
HCD6817B tuaj yeem ua cua ceev, cua kev taw qhia, ntsuas kub, Vaum, cua siab, PM2.5 thiab PM10, suab nrov.
Lub ntsuas phoo taum dej nag no tuaj yeem ntsuas nag lossis daus, dej nag lossis daus, sijhawm nag lossis daus.
