There is a myth that blowing the fan directly at your body while sleeping will cause stroke. It is not true. However Feng Shui believes that fan is like an “air arrow” and it is not encouraged to blow at your body directly. The double-circulator is a fan with two directions which will keep the air in the room circulate (unlike conventional fan just blow at one direction). With two fans blowing at two different directions at once, it get the temperature and heat evenly throughout the room. The dual air-circulator also has ionizer to make the air in the room fresher. The double circulator is suitable for both winder and summer use, and it will definitely not causing stroke while you are sleeping. The price for the double-circulator is 99.95 €.