my lifestyle

my lifestyle

2009年4月25日星期六

elevator button

how much there is on the average elevator button?
yes, i has taken the idea of the touchless button and applied it to elevators. 
Which is a good idea if it is true: that the 3,500 is 17 times greater than the average toilet seat.

Contagion! That’s what comes from elevator buttons. Instead of the black death, try this non-contact button method.