The anti-draft chamber is an optional accessory intended for WAY KO mass comparators working in unfavourable conditions (air-drafts). It is mounted on a table, inside the mass comparator is placed. The chamber features sliding top and side panes allowing free access to the weighing chamber of the mass comparator.

All components of the anti-draft chamber are made of metal and glass with conductive coating eliminating influence of electrostatics on the weighing result.