3-in-1 Multifunction: Qhov no portable huab cua zoo saib xyuas CO2 concentration, kub thiab av noo nyob rau hauv lub sij hawm, nws mob siab rau koj noj qab haus huv thiab yuav siv tau nyob rau hauv tsev, chaw ua hauj lwm, tsheb, chav kawm ntawv, tsev qiv ntawv, tsev so, gym, tsev xog paj, warehouse thiab ntau qhov chaw sab hauv.
