... index; 2,the air tester is test VOC, dust bacteria, stink,weat, etc; 3,display the calendar. 1,newest calendar desigen ... , week;2,the air tester is test VOC, dust bacteria, stink,weat, etc;3,real-time display air pollution index air ... breath or leave the room Our air tester bacteria, dust, stink, sweat, etc. VOC is test the organic volatic gas in ...