To begin with, they seem like very good bags. They are used in a WD 3 vacuum cleaner. They fit well and do not release dust into the bin. The previous ones I had were paper. Equally good. Just pay attention to the quantity. There are 4 pieces inside and not 5. I will return later with a new review after I have used them for a longer period

Very good product. The package contains 4 pieces and was used in a Karcher Wd3 vacuum cleaner. I will prefer it again

The bags were exactly what I needed.
Correct fit. The compatible ones are slightly cheaper than those from the dealership

Unacceptable product, a scam. It doesn't filter at all, dust comes out of the fabric into the bin. I accidentally bought compatible bags because the photos had the brand of the vacuum. It ruined my work and my day since I became all white from the dust while trying to clean the vacuum, the vacuum became a mess for the first time after 5 years. It also ruined my final filter which is new.

I used them to clean a new house (with small debris, dust from joints, furniture particles and everything else that entails). Flawless. Nothing passed through the filter.