There are some suits that are used in spraying herbicides that have fans in the hoods.
Here is the site if you would like to purchase, only $159.00. A little pricey I would think. Before putting out the dollars I would like to actually try one or at least see it in operation. Can't afford the shirt let alone fly to Japan to look at it.http://www.kilian-nakamura.com/catalog/conditioned-shirt-p-51.htmlJack