No comparison with original bag

After buying a new vacuum cleaner Miele I wanted austatten equal with the right vacuum cleaner bag.
In the Fast I settled on the title "10 Vacuum Cleaner Bags Miele S8310 S 8310 + HEPA filter # s4_GR" deceive and suspects the original filter (missing in the description for me an understandable "Miele" as the other manufacturers have characterized it).
Of course, this can be seen in something closer examination of Produktbides that they are not originals.
It would be desirable if the text would be adapted.

Upon receipt of the bag, I realized that I had purchased alternative vacuum cleaner bag.

The first time you change the dust bag I noticed a major difference. While the original bag is very stable placed on the opening and the closure is properly secured, no closure attachment is in the purchased version unfortunately determine. The bag is simply pushed into the closure and is almost loose at the opening of the vacuum cleaner to the sophisticated technology of the vacuum cleaner will also affect the suction thereby completely undermined.

The included HEPA filter sees my Errachtens made after very well and can be very good in the vacuum cleaner ebanfalls device mount.

All in all, this offer a güstigere variant (by further research, the cost is less than half) of the original vacuum cleaner bag and when the difference is not known, the bags are probably sufficient.

How well the vacuum cleaner bag work and whether the suction noticeably decreases as long as I will try to my original Miele vacuum cleaner bags are supplied.