vacuum cleaner new

 This photo shows the black very thin plastic type filter that sits facing
the fan on a household Hitachi CV-SF8 vacuum cleaner.

http://tinypic.com/view.php?pic rxdm0&s=4

Immediately behind this sits a plastic frame with a nylon fine mesh filter
and sitting in this frame is a black high density sponge filter.  (doing a
search on this sponge filter, it's called a Mesh-Urethane filter).

http://tinypic.com/view.php?pic=6gv5tl&s=4

This Mesh-Urethane filter is on the *right* side of this photo, the black
one on the left is the reverse of the very thin plastic type filter referred
to above.

This Mesh-Urethane filter really restricts the air flow. Its a bit better
when I wash it out under the tap with soap and water but soon seems to clog
up again. I find it works quite well if I relace it entirely with a piece of
soft tissue toilet paper, and keep changing the paper and all the debris
that builds up behind it.

Now the question here is what exactly is this very thin plastic type filter
(if indeed it is actually a filter) doing?  It's the one on the left in the
second photo.  It seems to have microscopic slits in its surface, but when I
wash it, it wont pass water through it, which surely it would if its some
kind of filter?  It's a thin flexible piece of plastic sheet, and seems
really strong. Almost like a sheet of carbon fibre.

 
New vacuum designs come along like new car models. They keep changing
things in the hope of generating marketing appeal. A vacuum still has
the basic purpose of picking up dirt.  The bagless  vacs use a great
deal of extra  air processing designs to catch more dirt. They
include heppa filters, dog hair filters, and bacteriacide filters.
That black filter looks like carbon to treat pathogens. The white one
is like a pre-filter to catch higher micron debris. Neither one is
designed to process much air volume. Don't be fooled by the fact that
a filter won't pass water. This is not a wet vac. There are times when
you can modify a machine to suit your needs better, but first assume
that Hitachi paid a staff to design this thing without using Charmin
as the filter media.
The bottom line is that if it picks up your dirt better with that
restriction removed, go ahead and use it that way.

 

referred

piece of

Hear Hear !!!

As the man from Hoover told me, "All Vacuum Cleaners Suck".

Remember the old Hoover Advert Jiggle.

"All that muck.  All that grit.  All those little bits of sh..........fluff.
Hoover beats as it sweeps, as it cleans."

I'll get me coat.  :-)  But I do agree with Al.

 

 He was wrong. Vacuum cleaners don't suck. They can only
reduce the atmospheric pressure.

 

Nah.  They suck.  :-)