1. if mercury thermometer is not used alone, before using the alcohol cotton (alcohol free cotton can be washed with cold water), wipe and dry.
2. drop mercury in the traditional mercury thermometer below 35 degrees.
3. mercury thermometer is clamped under the armpit. Note that Mercury must be in the middle of the armpit.
4. clamp do not loose the arm, do not move.
5. take the mercury thermometer to see the result and then do the cleaning.
Add: Liuxia Town, Xihu District, Hangzhou, Zhejiang province China