Chapter 19: Alternative Solutions, Biological Air Circulation System
In theory.
Xu Zhengyang should first use the Engineering Robot to dig out a cavity underground, and then outsource the renovation work, which would be the most efficient and fastest method.
However, Xu Zhengyang's shelter has now taken shape.
In this case, if he were to ask Chen Yong for help.
With too many people involved, it would inevitably lead to some unnecessary troubles.
Just when Xu Zhengyang was in a dilemma.
Suddenly!
Subtitles flashed before his eyes, revealing that he had triggered a new timed challenge task: [Timed Challenge Task: Airtight Modification (In Progress)]
[Your shelter has made some progress and can withstand most direct and indirect attacks.
However.
Threats in the air, such as viruses and toxic gases, can easily tear apart the defenses of your shelter!]
[Task Objective: Perform airtight modification on your shelter; create a disinfection chamber at the entrance of the shelter;
Install an air circulation system inside the shelter.]
[Task Time Limit: 239 hours, 59 minutes, 58 seconds]
[Task Reward: GX-2 Large Engineering Robot]
Seeing that the task reward was a GX-2 Large Engineering Robot, Xu Zhengyang's heart stirred; it was truly a case of a pillow arriving just when he felt sleepy!
If he had a large Engineering Robot.
Xu Zhengyang would not need to rely on others; he could complete the expansion of the shelter entirely on his own! But...
Airtight modification, disinfection chamber, air circulation system...
When Xu Zhengyang saw those familiar yet unfamiliar terms in the task objectives, he couldn't help but feel overwhelmed, unsure of where to start.
However, the system's prompt was indeed very reasonable.
After all, according to the system's hints.
The first catastrophe in the apocalypse was a biochemical crisis. Xu Zhengyang did not know what medium the zombie virus in this world was transmitted through.
But he didn't dare to take the risk.
After all, Xu Zhengyang had made his shelter increasingly perfect; if he inhaled the zombie virus due to air issues, it would be too much of a loss.
Therefore, upgrading and modifying the shelter was an imperative task!
...
After ten minutes.
Xu Zhengyang searched online and gained some insight into how to complete this timed challenge task to upgrade his shelter.
Airtight modification was easy.
The titanium door of the shelter had already undergone airtight testing; Xu Zhengyang just needed to seal the seven ventilation openings with concrete; with the Engineering Robot, this task could be completed in just over ten minutes.
As for the disinfection chamber.
Xu Zhengyang had seen this during the pandemic; it was simply a separate and sealed room built behind the main door to serve as an isolation room, equipped with comprehensive disinfection equipment, which was not difficult.
But the final air circulation system...
In Xu Zhengyang's understanding, this thing was only installed in space stations and BSL-4 level biological laboratories.
"So, can this thing be sold privately?" Xu Zhengyang wondered anxiously.
While speaking.
Xu Zhengyang continued to search online, hoping to find a supplier for an aerospace air circulation system similar to that of the Tiangong Space Station.
But after searching for a long time.
Aside from finding some news about space stations online, he couldn't find any other useful information. Helpless, Xu Zhengyang could only let his Engineering Robot first build the isolation room behind the main door while he took out his phone to contact Chen Yong.
After a moment, the call connected.
"Uncle Chen, do you know where I can buy an air circulation system?"
...
"Not an air filter.
I mean the kind of air circulation system that operates entirely in a closed loop, like the one in our country's Tiangong Space Station, which doesn't require outside air."
...
"Still the same thing, Uncle Chen, don't ask. I can only say that as long as you can get it, you absolutely don't need to worry about the money!"
...
"Okay, then I'll trouble you, Uncle Chen. I'll wait for your call tomorrow morning."
...
After hanging up the phone, Xu Zhengyang couldn't help but sigh. Chen Yong had never even heard of this thing, so it was likely he wouldn't be able to get it.
"Forget it, we'll cross that bridge when we come to it. I'll rest today and deal with the rest tomorrow."
Xu Zhengyang had been exhausted from traveling these past few days.
After saying that.
He took a shower and then collapsed into his bedroom, falling into a deep sleep...
*The next day, Xu Zhengyang woke up early.
After a night of work.
The Engineering Robot had already built a disinfection chamber behind the main door according to Xu Zhengyang's preset program.
Xu Zhengyang looked at the newly built isolation room and nodded in satisfaction, then he quickly ate something and drove to the city to purchase disinfection equipment.
Three hours later.
After installing the disinfection equipment and building a disinfection chamber behind the shelter's main door.
Chen Yong's call came in at just the right time.
As expected.
Chen Yong indeed couldn't get the aerospace air circulation system that Xu Zhengyang wanted.
"Sigh..."
After hanging up the phone, Xu Zhengyang sighed.
With only the air circulation left for this timed challenge task and no clue in sight, Xu Zhengyang felt increasingly frustrated.
Just as Xu Zhengyang hesitated about whether to contact Yan Xiaowei again to see if he had any leads.
Suddenly!
A flash of inspiration struck Xu Zhengyang, and he excitedly slapped the table and stood up, exclaiming, "Wait! The system only said to build an air circulation system in the shelter, but it didn't specify what kind of air circulation system I had to build!
Why do I have to be so stubborn and insist on building a space station-like aerospace air circulation system in the shelter?! I can completely install some grow lights in the shelter and buy some large-leaved plants...
In that case...
Wouldn't a biological air circulation system be formed?!"
As soon as he finished speaking.
Xu Zhengyang, disregarding his fatigue, rushed out again, speeding towards the Bai City Flower and Bird Market!
*A healthy person at rest requires about 10,600 average-sized leaves for photosynthesis to meet their daily oxygen needs.
If that person is in a state of exercise, then their oxygen requirement increases even more!
A single plant provides very little oxygen to humans.
The potted green radish, which is the easiest to care for in the flower and bird market, has about 50 leaves per plant.
This means that.
If Xu Zhengyang wanted to build a basic plant air circulation system in a sealed shelter.
Over two hundred pots of green radish would meet his basic survival needs.
But for safety's sake.
Xu Zhengyang ultimately bought four hundred pots of green radish at the flower market, along with a sufficient amount of ultraviolet lights.
Thus, he would need to buy at least two hundred pots of green radish!
But for safety.
Xu Zhengyang bought a full thousand pots of green radish at the flower market, in addition to a sufficient number of grow lights, ensuring that his shelter could produce enough oxygen!