Miele 10123230 AirClean 3D Efficiency Dust Bag, Type U, 4 Count, 2 Air Filters

Even though these 3D Efficiency bags are marketed as fitting all ‘Type U’ cleaners – they DONT. I have the Miele 7210 Upright Twist. The bags dont stay mounted correctly and the dust gets all over the inside the compartment. Stick to the regular ‘Type U AirClean’ filters for S7000-S7999 uprights. Miele should STOP advertising the 3D bags as Type U because there are now 2 distinct, different Type U bag styles (regular and 3D) and the 3D does not work correctly with all cleaners that say they take Type U.

Really disappointing – Miele makes good products and is known for its engineering and innovations. Too bad they completely missed the boat with the 3D.

These bags seem to either be manufactured incorrectly or they are fake. They do not work in my Miele S7280.

We are young seniors and have a 2 story house. It is easier to have one vac for each floor, rather than carry a vac up/down stairs. The Miele serves the upstairs where our two cats have their “home base”. Downstairs we have a Dyson where our long haired dog mainly stays. Both upstairs and downstairs have a mixture of hard floors and carpeting. When the Dyson dies we are already planning to be an all Miele household and it is mainly due to these bags. The Dyson picks up fine, but with a long haired dog and his trips in/out of the house, the downstairs challenge for emptying the Dyson is all the hair wrapped around the center column mixed with the outside dirt. Rarely can I just shake it out — it usually takes some prodding from my fingers to get it completely empty. Then I have a handful of very fine dust to deal with.

In comparison, the Miele not only picks up the cat hair well (one is a long haired Ragdoll), but also cleans up the fine litter trail. It is not quite as agile as the Dyson, but when it come time to change the bag, the difference is so nice. The bag has a loop you pull to disengage it and the bag automatically has a slide closure that covers the hole. The inside of the vac housing is remarkably clean, showing that virtually nothing escapes the bag. That kind of ingenuity, ease and cleanliness is worth paying for.