Chapter 640 (1/2)

Of course, shangzi knew that there would be such a situation here in order to imprison the practitioners. Since there was no real Qi around here, the practitioners were basically abandoned, which was no different from ordinary people.

The only difference is that there is real Qi in the body of people in practice. However, the real Qi in the body of people in practice is limited. Different accomplishments, the real Qi stored in the body is also different, and the attack power that can be exerted is also different. Before Zhou qiuchu imprisoned these people in practice here, they should try to exhaust the real Qi in their body.

Shang Zizhen looks at Zhou qiuchu with a smile, and Zhou qiuchu also looks at Shang Zizhen with a smile, because Zhou qiuchu's answer just now is full of nonsense. She is joking with Shang Zizhen.

Shangzi really didn't say anything, waiting for Zhou qiuchu's real answer.

Zhou qiuchu asked, ”Mr. Shang, don't you feel any difference between here and outside?”

Hearing Zhou qiuchu's question, shangzi felt it carefully, then took a deep breath and said, ”I understand. The air here is different from the outside world!”

This place itself is underground, and there will be some dull feeling. This feeling conceals the fact that the air here is slightly different from the outside world, so shangzi really didn't feel it.

Being reminded by Zhou qiuchu, shangzi really felt his surroundings carefully and took a deep breath. He immediately realized that the air here was different from that of the outside world.

”That's right!” Zhou qiuchu nodded and said: ”this is a fully enclosed space. Every room and above the corridor has a change hole. The other end of the change hole is connected with the oxygen produced. The oxygen here is the supply of artificial oxygen, not the outside air.”

After a pause, Zhou qiuchu said: ”the fan in the air duct is a motor that can rotate forward and backward. When it rotates forward, it will be filled with oxygen. When it turns over, it will take away the oxygen completely!”

Shang Zizhen nodded silently and gave a thumbs up.

This is a very good design. Man made oxygen is different from the outside air, and there is no real Qi. This is also the reason why shangzi really can't feel the existence of real Qi around him. In these practices, the real Qi in the body is exhausted, but it can't be replenished. Naturally, it's no different from ordinary people.

If the fan motor in the air duct reverses, the oxygen here will be pumped out. If there is no oxygen, people will suffocate and die. In fact, this is a big killing move. Once something is wrong, the fan motor reverses, and soon all the practitioners who are imprisoned here will suffocate and die.

In other words, it is more difficult to rescue these people from here than to ascend to heaven!

The safety door is tens of centimeters thick, and it's made of metal. I don't know what metal it is. However, it's conceivable that the hardness of the safety door is beyond expectation. It can't break here in a short time, and the time is enough for the oxygen here to be evacuated.

What's more, this is the specific location of Zhou qiuchu's department. The surrounding monitoring must be extremely strict. I'm afraid that once someone in practice approaches, it will trigger an alarm.

Although we can try to cut off the power supply here, we can try to make the fan motor unable to start because there is no power, shangzi can really think of it. How can people in this department not think of it?

In modern society, the vast majority of public places and high-end residential areas are all connected by dual power supply. If one way of power supply is cut off, it will be automatically converted to another way. It can be said that the power supply is zero delay. This method is also not feasible.