When waste water is discharged from the drain, the trap in the vent drain is automatically opened, the vacuum in the drain pipe is broken, and air is introduced into the drain pipe, maintaining excellent drainage. Additionally, it actively checks air ventilation along with drainage, relieving pressure and friction within the drain pipe.

In other words, it opens and closes through physical mechanics according to the amount of sewage and drainage in the drain, and as a result, various viruses such as bad odors and pests can be solved with a single vent drain. In addition, it has the advantage of reducing noise between floors and making cleaning easy.

This product can be applied to various spaces in various buildings, including toilets, bathtubs, showers, sinks, and laundry rooms. When designing such a space, applying the building drainage system as a vent drain is very easy and simple to construct, and the amount of piping required for construction can be reduced, making it economical in terms of both time and cost.