Lub tshuab cua cais roj sab nraud. Kev tsim cov tshuab cais roj sab nraud: tsis tas yuav muab rhuav tshem rau kev saib xyuas.

✅Lub tshuab cais roj sab nraud: Hloov lim dej sai thiab yooj yim, txuag tau lub sijhawm saib xyuas thiab cov nqi zog ua haujlwm.

✅Ruaj khov thiab siv tau ntev: Siv cov thev naus laus zis German, ua tiav qhov kev lim dej kom raug txog li 3ppm, tiv thaiv lub tshuab tseem ceeb tau zoo.

✅Kev ua haujlwm zoo thiab txuag hluav taws xob: Lub kaw lus tswj hwm ntse hloov kho qhov ntim pa tawm raws li qhov xav tau, txo qis kev siv hluav taws xob.

✅Kev ua haujlwm suab nrov qis: Kev tsim qauv tshwj xeeb, suab nrov ua haujlwm tuaj yeem qis dua 62 decibels.