There is an existing system in which a building maintains a vacuum chamber, from which all air has been forcably removed. This leads to ports. connecting a hose to the port makes it work like a vacuum cleaner: material is forced into the hose with air pressure, about 14 pounds per square inch.
This may seem like a lot of work considering that vacuum cleaners already exist. However, with an average level of vacuuming, the chamber uses less energy, distributed through a longer period of time. It is easier to maintain, and several parts of the building can be cleaned at once. These advantages are promptly nullified if you do something like leave the ports open, which will require the vacuum system to run constantly.
Although this system already exists and can be found in all kinds of homes and businesses, I still think it's worth discussing.