Humans have lots of basic requirements that need to be met in order to stay alive. Food is a necessary one, though it’s possible to go without for great stretches of time. Water is more important, with survival becoming difficult beyond a few days in its absence. Most of all, though, we crave oxygen. Without […]
If you have ever planned an air duct or dust extraction system for your shop, you’ll know just how difficult it can be to accommodate all but the simplest of arrangements. Off the shelf systems are intended for use in home heating or other domestic systems, and offer little flexibility of choice. Of course you […]