Portable fan app guid the user to make the portable fan in home with no expense.This is small fan which you can carry any where you want . You have no need of wires and battery to run this fan.this is simply connected to micro USB port of any mobile.Components you need to make Smart fan.
1 Two wings of any toy or you can make it yourself with useless plastic.2 Vibrator / Motor used in mobile phone for vibration .3 Empty juice bottle .4 Used Pencil 5 Magic or Elphy to join Tiny Fan Components.6 USB wire to connect to mobile and fan as power source.7 Nothing more , enjoy air in Non Electric coverage area , or in journey.