A negative pressure tent invented at U-M has received emergency use authorization from the FDA.

DETROIT – A local radio DJ is spending several nights outside in a tent, braving the freezing temperatures for a good cause. Steve Grunwald from WYCD’s morning show has been sleeping outside the Ronald McDonald House since Tuesday night. He’s doing it to raise $50,000 for the Ronald McDonald House, which offers families a place to stay while their children are undergoing treatment at Children’s hospital. Grunwald has promised to stay put, living in that tent, until every dime of the $50,000 is raised. But here’s the kicker: You can donate to help Grunwald reach his goal, or you can donate to keep him there longer.