Why Are Hard Cover Models TOL?

[jmurray01]

One thing that made me think dirty fans might give better filtration was due the fact the dirt is blown into the bag at a lower pressure than a clean fan, where it is sucked in at high pressure. So, to me, that signifies that the higher pressure of which the dirt is sucked into the bag of a clean fan Vacuum Cleaner would cause more dust to get past the bag.

I, of course, could and very well may be wrong about this however.

 

[vintagerepairer]

I miss read your earlier message, where I see now you speak of a HEPA bag in the dirty fan cleaner and a HEPA filter on the clean fan. But either way, if a HEPA is a recognised standard, it should make no difference to the outcome. A bit like I suppose travelling at 100mph in a car or on a push bike. 100mph would be the same in both, if such speeds could be achieved, even if there would be numerous differing factors involved.

I am now in two minds as to whether or not to delete this message for fear of Mr Murray attempting to cycle at 100mph simply to see what it would be like. I hope he gets on better than tapping out phone numbers. !!

 

[jmurray01]

I already tried that after watching ET - Didn't work...

 

[ned_flanders]

I think I prefer the soft bag too...and I remember thinking they were old-fashioned at one time. And I also think of the Dyson commerical guy talk about how as kids they would 'beat the bag and the dust would fly out'. To me the obvious answer is that the hard shell vacs appear more modern, and leads to more electronic additions and onboard attachments. My Kirby doesn't have a bag check indicator, dirt finder sensor, or onboard attachments...but it's TOL for a different reason.

Unless you have a really good hard plastic vacuum with self-sealing bags, you're going to get dust and dirt in the bag compartment...and I can't just throw that in the wash like I can with a sturdy cloth bag. The bag compartment on the canister vac back home is so small (and the inside bag is hard to remove when it's very full), I can see why you can get more dirt in the soft bag models.