Fans have had a very long history and they have evolved greatly from being introduced for the first time for the general public in the 20th century. These devices have come a long way on the road of evolution and not only have they evolved but also, they have developed themselves or have demarcated themselves into various categories. Earlier we didn’t used to have so many categories of fan but today we have the table fan, ceiling fan, exhaust fan, wall mount fan etc. and a few other categories as well.
Fans have become lighter from what they used to be when they were introduced. When they were introduced they used to be very bulky and heavy and these were the devices which were a nuisance to carry around and the major reason why the portable fans were not an initial success on their very first few years of …