Finally a bag that keeps all the dust, without releasing the opening when the exchange ... The fineness of filtration actually a guarantee of longevity for the motor of the vacuum cleaner. I experimented quite often with these bags, one can aspire plaster or lime without problems! What is very significant when working. With other bags, same fabric, I grilled twice a motor!
The price is a little high but you can find it at 7 and postage. However, this choice is not amortized quality, since the vacuum cleaner continues to suck well until the bag is full arch! Which is not the case with other qualities of bags already barely half ...