A Still Air Box (SAB) is a sealed plastic tote with two arm holes cut into one side. To build one: choose a clear 60–90 litre storage tote, mark two 60–70mm holes at arm height, cut them carefully with a hole saw or a heated craft knife, sand the edges smooth, and sanitise the interior with 70% isopropyl alcohol before every use. Leave it 5–10 minutes for the air to settle before you start work. A typical build costs £20–£30. See more on setting up your first … read more