HSK 7-9
口罩
kǒuzhào名
mask (surgical etc)
进入病房前请戴好口罩。
Jìn rù bìng fáng qián qǐng dài hǎo kǒu zhào.
Please put on a mask before entering the ward.
Say it
Hold the button, say it, then let go.
Other HSK words sharing a character
Also free:
Appears across levels (7-9) in the HSK 3.0 word list.