"The Environmental Protection Agency has its eyes on pollution from backyard barbecues. The agency announced that it is funding a University of California project to limit emissions resulting in grease drippings with a special tray to catch them and a "catalytic" filtration system. The $15,000 project has the "potential for global application," said the school."
....a filter and fan are proposed for installation. "The secondary air filtration system is composed of a single pipe duct system which contains a specialized metal filter, a metal fan blade, a drive shaft, and an accompanying power system with either a motorized or manual method. This system can be powered by either an exterior electric motor with a chain-driven drive shaft, directly spinning the fan blade, or a hand-powered crank," said the project write-up.
http://www.washingtonexaminer.com/backyard-burger-and-wiener-roasts-targeted-by-epa/article/2561474
http://www.foxnews.com/leisure/2015...against-epa-pollution-emissions-for-backyard/
....a filter and fan are proposed for installation. "The secondary air filtration system is composed of a single pipe duct system which contains a specialized metal filter, a metal fan blade, a drive shaft, and an accompanying power system with either a motorized or manual method. This system can be powered by either an exterior electric motor with a chain-driven drive shaft, directly spinning the fan blade, or a hand-powered crank," said the project write-up.
http://www.washingtonexaminer.com/backyard-burger-and-wiener-roasts-targeted-by-epa/article/2561474
http://www.foxnews.com/leisure/2015...against-epa-pollution-emissions-for-backyard/