For the evaporation Rate about 4-5 litres per day
Well i got these fan i i was in Bangkok
for Fan noise u get those AC/DC u can Run the FAn at 7V,9V,12V
so if u Run at 7V and 9V will lower the noise get those mulit voltage
adapter so can select Different voltage for differ speed
For those interested kindly leave contact number?
Peter 97895334