I discovered a disadvantage to the incredibly effective filter on my Dyson the other day. A few weeks ago I gave the filter its recommended six monthly wash (the filter is a donut shaped bit of dense foam).

The other day I realised that the cleaner wasn't sucking nearly as well as it should, it wasn't managing to spin the turbo brush fast enough to be useful. I thought "oh bugger, its bust".

When I took the cleaner apart though I discovered the problem, the foam filter was solidly filled with what looked like cement dust.

Thankfully the filter is dead easy to clean, 60 seconds of flexing and patting and it was clean.

It sucks again, I love my Dyson...