The Mobile HomeCage requires an airflow of 120 L/min; the Mobile HomeCage Large – 150 L/min and the MultiCage Training Arena – 250 L/min. The air pressure requirement is less critical: 0,1-0,2 bar pressure is sufficient. In most cases, the Mobile HomeCage can operate from a standard air source. If your air source does not satisfy the above requirements, use a portable air pump. Contact us for recommendations. Do not use pressurized air tanks, as they will run out of air very quickly. Please note that most noise in the system is generated by the air source. The simplest way to reduce noise is to place the Mobile HomeCage away from the air source, e.g., in an adjacent room, or to build an enclosure for the air source.