Every now and then my blog doubles up as a product review column, and this time I am telling you about something you probably would not expect to read about here and that is the Dysan vacuum machine. I have always been interested in it because it is advertised in all the technological magazines in America and they always go on about its technology, the simple way it fits together and operates on a ball, so that no wheels are needed and it certainly has futuristic looks – looking a little bit like a mini robot.

It is claimed that the air that it expels is cleaner than the air that any other vacuum cleaner expels and that is quite important for asthmatics, but what really impressed me, after vacuuming a floor already vacuumed by my existing vacuum cleaner, is how much more dirt it picked up. It certainly comes at a price premium, but it made my other vacuum cleaner, which cost half the price, look like a fourth-rate machine.