1 The largest school district by enrollment with an election in 2016 is Wake County Public School System with 153,534 K-12 students.  The smallest North Carolina school district among the nation's largest with an election in 2016 is Duplin County Schools with 9,628 K-12 students.
Freon only remains a liquid while under pressure inside your refrigerator's cooling system. The chemical changes to a gas as soon as it contacts the air. This means, when you smell freon in and around your refrigerator, you're also inhaling varying amounts of freon gas. According to the Environmental Protection Agency, freon gas is denser than air and travels very slowly to the upper atmosphere.
Maybe you are confused about the differences between air purifiers and ionizers. Both of these products are great for any home. Maybe youâre on a tight budget and arenât sure which one to purchase. This article, Air Purifiers vs Ionizers: The Differences, will explain how each of these machines can be used to improve indoor air.