The basic design of the cooling fan hasn't changed much over the many years it has been around, so the 'COANDAIR' fan unit looks to change this. Designed by Kurian Sajeeve, the 'COANDAIR' fan works by drawing the air in from the rear without having to sport exposed blades. This makes it a safer, more efficient piece of equipment that won't provide chopping air circulation when in operation.
The 'COANDAIR' draws in air and, instead of blowing it in a straight fashion, forces it to flow over a curved surface on the interior section just below the outer casing. This helps to smooth the air and contour it into a way that makes the fan unit more appealing when it comes to providing relief from heat.