Our system, the container (38mm diameter and 14mm height) is a two-chamber system. The fluid is held in the outer chamber (max 5ml) and the inner chamber holds a pressed cellulose towel (22x20cm).
With a firm press to the middle of the container, a valve opens at the bottom, activating the two-chamber system.
The fluid from the outer chamber is released into the inner chamber and absorbed by the towel. After absorption the towel expands and can be easily unfolded and ready to use.
