This free survey is powered by
0%
Exit Survey
 
 
Do you know about Mouth Muffle ( Mouth Mask ) ?您知道口罩么?
 
Yes,I know it. 知道
 
No, I don't know it. 不知道
 
 
 
Do you know how many different types of mask ? 您知道有多少种不同的口罩?
   
 
 
 
What functions would you like to include in your Mouth Mask? 你希望你的口罩都含有哪些功能?
   
 
 
 
what do you think about the main function of mouth mask should be ?你认为口罩最主要的功能是什么?
   
 
 
 
How old are you ?
 
10 - 24
 
25 - 35
 
36 - 58
 
59 - 70
 
older than 70