Miele S2 series bags
These fit
GN dust bags.
Dust bags
Finding the model number
It's worth a look at the rating plate first, because names get reused across generations. The data (rating) plate with the model and type code is on the underside of the vacuum cleaner. Quote the model type from it when ordering bags or filters.
Source: Miele, 28 Oct 2026
When to change them
A bag that's only half full can still be done for: fine dust blocks the pores first, which is why the indicator can go red early after a lot of plaster or fireplace dust.
Seeing a full warning on a fresh bag usually points to a blockage in the hose or floorhead. Check there before blaming the bag.
Quick answers
What dust bags does the Miele S2 series take?
GN, which Miele sells in 3 different packs.