The material used is covered with silicon to resist the corrosive effects of ozone gas.

The size of the topical bag is at least 30x60 mm.

There is a locking latch on the inlet hose to prevent the single entry of the bag and the escape of gas inside.

The gas inlet hose of the bag is made of ozone resistant silicone.

There is a luer-lock in the mouth of the gas inlet hose.