The core component of the American waterless urinal system is the filter cartridge, which functions as a trap. The design of the filter cartridge and the use of surface anti-permeability materials allow urine to flow into the cartridge through its own biodegradable sealing liquid.

The sealing liquid has a pleasant fragrance and forms a sealed layer between the drainage pipe and the indoor restroom environment, thereby controlling odor leakage. The sealing liquid remains present throughout the use of the filter cartridge and does not need to be replenished when replacing the cartridge.

The filter cartridge also serves to collect urine scale, preventing blockages in the drainage pipes. It creates a fresh environment, maintains smooth pipe flow, and avoids the waste of water resources. Manufacturer of water-free urinals: Anbangjie Technology, Manager Liu, 13488864016.