As far as I can tell over the last 10 months, no dust leaks at the bag collar when using current style bags. The early bags had thin cardboard and did deform enough under air pressure to leak. But those bags are long gone from branch stock.
Where the bags do leak is at the very bottom, over the HEPA filter. Dust comes through the paper media. It is nowhere near as severe as the recently discussed Panasonic canister. The Aerus bag compartment has very little dust on the sides. Where you find it is in the folds of the HEPA filter. I can assure you that absolutely no dust gets past the filter into the motor.
I don't think fleece bags are the answer because I use fleece bags in my Alto Wap 12 and they leak worse than the paper bags.
All in all the Aerus performs very well and it is still my go to vacuum. The Miele Capricorn hasn't been used in 10 months.
John
Where the bags do leak is at the very bottom, over the HEPA filter. Dust comes through the paper media. It is nowhere near as severe as the recently discussed Panasonic canister. The Aerus bag compartment has very little dust on the sides. Where you find it is in the folds of the HEPA filter. I can assure you that absolutely no dust gets past the filter into the motor.
I don't think fleece bags are the answer because I use fleece bags in my Alto Wap 12 and they leak worse than the paper bags.
All in all the Aerus performs very well and it is still my go to vacuum. The Miele Capricorn hasn't been used in 10 months.
John