Building a Corsi-Rosenthal Air Filter Box for the first time

Corsi-Rosenthal box

It took me about 50 minutes to build this Corsi-Rosenthal air filter box with parts from Home Depot here in Toronto. It’s a 20″ box fan, four 20″x20″x1″ 3M 1900 air filters (1″ deep), some duct tape and cardboard. The cardboard came from the fan’s box and from a grocery delivery, so you can use just about cardboard you’ve got around. The shroud has a 15″ diameter hole, as suggested by David Elfstrom on Twitter;Continue…

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Smokers who switch to vaping may take up healthier routines, new UW study shows | The Seattle Times – With Commentary by K. Sis. Lasher

Woman Vaping

Rick Kosterman, a UW researcher, would never say that vaping is good.But a new University of Washington study shows smokers who switch to e-cigarettes may have more opportunities for healthier choices. That doesn’t mean vaping is healthful, researchers said, but for people who already smoke (and aren’t able to quit) it can be associated with healthy routines. Source: Smokers who switch to vaping may take up healthier routines, new UW study shows | The SeattleContinue…

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Mobile Ticket – Virtual Queue Management

Empower your customers by allowing them to queue virtually using their phone, eliminating the pain of waiting in line

Source: Mobile Ticket – Virtual Queue Management