An effective Hand Fan
You may have tried a typical small hand fan but not found it efficient enough to bother using one.
But when you know two important things you can increase the cooling effect many, many times. My estimate is some 20 times in many cases!
Part of the Report "Super Cool/UV Umbrella. Efficient Hand Fan. Cooling Techniques." which has some 37 pages, 14 photos.
© Copyright Anders Ansar 2008-2009. You can use pictures and text from pages as long as an adjacent link is provided to that page/s. All rights reserved. All lefts reserved too.
Last modified Sept. 21, 2009.