The Nilfisk-ALTO Attix Xtream 30 wet and dry commercial vacuum cleaner white synthetic "fleece" dustbags pack of 5 they will also suit the Nilfisk IVB3 M and IVB 30, also suit the Nilfisk-Alto 360.
These white synthetic bags are better than the paper dustbags.
They are for single use only.
At the moment, delivery is capped at $20, so, maximise the saving on postage and buy some packets of dustbags, or a hose or a new floor tool, or some other accessories!