Micro Cooling Fan industry standard waterproof rating

0 unprotected "Micro Cooling Fan"
One can eliminate the harmful effects of water droplets falling vertically
Two pairs and 15 degrees vertically within a protective effect of water droplets falling
3 can eliminate the harmful influence of the vertical direction of 60 degrees spray droplets
級 4 "Micro Cooling Fan" splash can be eliminated from the harmful effects of water droplets in different directions
5 for each direction of the nozzle can eliminate the harmful effects of water spray
6 can be eliminated for each direction of the nozzle of the harmful effects of a strong jet of water
7 top 0.15-1 meters from the water, for 30 minutes, and performance is not affected, watertight
8 "Micro Cooling Fan" at the top of 1.5-30 meters from the water, a continuous 30 minutes, the performance is not affected, watertight