“Bag worked well for approx 60 - 70 uses then the rubber seal got stiff and the weight of the bag stretched it so it allowed dust to bypass the bag and enter the main vacuum chamber, choking the hepa filter. Hopefully with some material research a better performing solution can be found and yield more effective bag life. The folded bottom of bag sealed by tube clamp seems to require better clamp force to maintain seal. Not unhappy with purchase, excrpt that Australian exchange rate and delivery made it a $200 exercise for one bag, hence would prefer a longer effective duty cycle to justify price.”
