Originally posted by smartboy4:
same thing like aircon one la use the fan and turn the heat into cold air..
this also take the air from outside then cool inside your body.
what if i make this and sell locally, good business?
quote from report -
"It works by helping the body's own cooling system. Normally, sweat is produced and evaporates, causing a cooling effect. Clothes interfere with this process by trapping the droplets.
But the shirt, invented by former Sony technician Hiroshi Ichigaya, produces a layer of circulating air which enhances sweat evaporation.
Two fans at the back pump fresh air around the wearer and out through the neck and sleeve ends. Moisture can also pass through the cloth. The 4in diameter fans are powered by AA batteries, which last for several hours, or by plugging into a computer using a USB cable. "
jus a normal fan. not a/c.
simi "use the fan and turn the heat into cold air.."

u know how an air conditioning unit works or not?