Considering the price I want to like these bags but I can't. The first bag worked fine, then none worked at all. My third bag fell apart and the bin was full of chalk, I mean dirt. It's a total cleaning mess, the filters are clogged with scale and I think my vacuum is clogged. I went to my local Miele dealer and bought the factory bags. No problems since installation. These bags are rubbish and I can't tell you why. Just by looking at them, they appear to be identical. Functionally they are definitely not the same - I just threw away the last five bags from this company.