The Brief Volunteers with the Visiting Nurses Association of North Texas are delivering box fans to vulnerable residents alongside their daily Meals on Wheels deliveries during a severe heat streak. In the midst of a brutal, triple-digit heat streak, volunteers are doing what they can to make sure North Texas’ most vulnerable residents are staying cool. Box Fan DeliveriesWhat we know:FOX 4 tagged along on Wednesday as the Visiting Nurses Association of North Texas made food deliveries through the Meals on Wheels program. On Wednesday, they also brought box fans to some of their clients. The VNA said a single box fan can make the difference between a safe home and a health emergency.