Most people will be familiar with portable vacuum cleaners, but those are not the only type of vacuum cleaners. A central vacuum cleaner is a fixed structure that collects dirt through pipes in the walls. In order to use such system each room needs one or more vacuum inlets – one has to put the hose on the inlet.
The main benefit of a central vacuum cleaner is that a stronger motor can be used than in a portable one. This means more suction power and hence more difficult dirt can be collected. And since the dirt is collected centrally, no exhaust air filled with allergens will recirculate.
Because central vacuum cleaners are more hygienic than portable vacuum cleaners, we propose that the former will be mandatory in the homes of space settlements.
A central vacuum cleaner needs to be emptied a few times a year. But this tedious task might be eliminated if each home would be connected to dirt disposal tube system. Essentially this system would be a secondary central vacuum cleaner.