jhsu802701: I've been using the leftover jars as food storage containers, but I've realized that there's another use for them. Drill a hole through the lid to provide an inflow path for a small computer fan to be attached to the lid. Drill a 1-inch hole in each of the sides and the bottom. Cut up one of those cheap face masks to cover each hole, and use tape to form an … [Read more...] about Square plastic jar design
“As a parent, I would be concerned,” air quality expert says of N.B. school results
CBC News: High carbon dioxide levels indicate poor air quality, which can cause health concerns, engineer says... HVAC engineer Joey Fox says schools should have only 1,000 parts per million of carbon dioxide, but several New Brunswick schools exceeded that, with one peaking at 3,914... Data recently released by the Department of Education shows [37 schools had peak … [Read more...] about “As a parent, I would be concerned,” air quality expert says of N.B. school results