Replaced the filter element in my air filter, and gave the rest of the unit a good clean. I had been wondering how effective it was at filtering out dust in the air, my first thought was well if nothing else it's doing very well at collecting dust around the intakes, but after vacuuming them, then taking the lid off, it's fair to say, it's pulled a fair bit out. It's also fair to say I should probably replace the filter more often. On the plus side, I read the manual today, and realised the little blue light on the top that's been lit for at least the last year... is a filter change indicator...
J