Miele Complete C3 bags and filters
GN dust bags, an SF-HA 50 HEPA filter and an SF-AA 50 exhaust filter. Any of the versions below will do.
The same parts fit every version in the "Also covers" list, so check your plate against it before you order.
Dust bags
HEPA filters
Exhaust filters
Finding the model number
Check the plate before you buy anything: a Miele name on the box can cover more than one version. 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
Change the bag when the coloured marker in the airflow (dustbag) indicator fills the window; change it anyway if it is bulging with hair or fluff. Swap the AirClean exhaust filter and dust compartment (motor protection) filter each time you open a new box of bags. An Active or HEPA AirClean 50 filter lasts about 50 hours of use, roughly a year, and the filter indicator shows when it is due. (source)
Don't judge a bag by how full it looks. Fine dust clogs the paper or fleece long before it's packed, and suction drops off with it. Trust the indicator over your eyes.
If the indicator says full with a nearly empty bag, look for a blockage in the hose or floorhead before you swap it.
Only rinse a filter the maker says is washable, and let it dry right through before it goes back in. Most of the "it smells" complaints start with a damp filter.
Quick answers
Which dust bags fit the Miele Complete C3?
GN, which Miele sells in 3 different packs.
If I've got a Miele Complete C3, which HEPA filter do I need?
SF-HA 50, or any of the other 2 Miele versions listed above.
What exhaust filters does the Miele Complete C3 take?
SF-AA 50, or any of the other 3 Miele versions listed above.