After an unpleasant series of respiratory infections (propably asthma-related), I decided to do so something about it. Two days of vacuuming, washing and reorganising was a good start, but I also decided to upgrade my air cleaner. The old one (a Philips) is now washing off the particles in the computer corner, while an Electrolux Z8020 takes care of the bedroom. An interesting example of how the “life sustaining systems” in our homes start to remind you of space stations. This baby can sense both the amount of microparticles and the current sound level, and adjust its speed and power relative to either.