Chapter 27: 1st upgrade

"Cough cough cough!" Chen Xin was awake.

Today is the third day that Chen Xin entered the shelter. After two days of

adaptation and adjustment, Chen Xin feels that he has adapted to life in the

shelter.

It’s just that I don’t know why today, the whole refuge is filled with the

smell of choking smoke, which makes Chen Xin directly awake from his sleep.

Coughing and covering his mouth and nose, Chen Xin got up from the bed and

turned on the light in the room.

He tremblingly put on his clothes, but he still felt dizzy, and even his

breathing was not smooth.

Chen Xin knew that this was not because he hadn't woken up yet, but because

there were harmful gases in the choking smoke in the air. He inhaled a lot of

smoke in his sleep, which affected his breathing.

If it wasn't for him to be woken up and continue to sleep like this, it is

most likely that he died due to lack of oxygen or harmful gas poisoning in his

sleep.

Chen Xin, who reacted, hurriedly found the gas mask and an oxygen cylinder

from the cabinet on the side. After taking a few breaths of oxygen, he put on

the gas mask.

After taking a few breaths of oxygen, Chen Xin finally eased over. Only then

did he have spare time to think about what happened.

There should be no fire in the refuge, because he has not used any open flame

at all, and even used an induction cooker to boil water in the past two days.

But at this moment, Chen Xin didn't think too much. He ran to the garage and

picked up the small fire extinguisher placed in the trunk of the car. Only

then did he check the various places in the shelter.

However, what made Chen Xin very strange was that the refuge did not catch

fire, and there was no place to smoke.

Where does the choking smoke in the air come from? Obviously, the choking gas

smelled after something burned. Chen Xin absolutely didn't believe it if

nothing burned.

But when Chen Xin started to check again, he finally found that the smoke was

coming in from the ventilator of the refuge, and the smell of smoke had

entered the refuge from outside.

This discovery made Chen Xin react, it was a fire outside!

In two days, has the fire caused by the meteorite impact finally burned here?

But this discovery made Chen Xin feel extremely helpless, because even if he

knew the reason, he couldn't solve the problem.

That is a big fire that has spread to the entire world. Most of the vegetation

will be ignited. Although Chen Xin has not gone out, he believes that the

mountain where his refuge is located should have already been burned,

otherwise he will not be let go. Take refuge in all such strong smoke.

Please know that the ventilation system of the shelter is specially designed,

so that smoke and toxic and harmful gases will be filtered under normal

circumstances.

But the current situation... Obviously, the external smoke concentration has

exceeded the limit of filtration and tolerance of the ventilation system.

Chen Xin feels helpless and desperate, is he about to be so smoked to death?

Although he prepared gas masks and oxygen cylinders, there is a limit to how

long these things can be used.

In this environment where the smoke is gradually dense, even if the quality of

the gas mask bought by Chen Xin is good enough, it can only last a few hours

at most. The filter element on it must be replaced to ensure the filtering

effect, and the oxygen cylinder can only be used. Two hours.

Although according to Chen Xin's estimation, the outside mountain fire will

not last long and will be extinguished due to the drop in temperature caused

by the sky being obscured by dust clouds, but this time will still last for

several days or even more than a week.

Originally, Chen Xin thought that his refuge ventilation system was enough to

ensure his survival for such a long time, but now the reality has given him a

merciless slap.

Obviously, the ventilation system that was previously thought to be able to

withstand the attack of the mountain fire is obviously not resistant. If Chen

Xin can't figure out a solution, after the gas mask and oxygen cylinder fail,

he is likely to be smoked to death in the fire scene. Like people, was smoked

to death in this refuge.

escape? This is obviously impossible.

The smoke came into the refuge, and it was conceivable that the outside was

surrounded by wildfires. Even if Chen Xin opened the door of the refuge and

ran out, it would only change from bacon to roast duck in the oven.

And even if he can run out, where can he go?

The fire is not his mountain top, but the super fire all over the world.

At this moment, more than 90% of the vegetation on the Blue Star has been

ignited by the heat released by the impact of the meteorite. Flames are

burning everywhere on the Blue Star, and there is nowhere to escape.

There may be no flames on the sea, but how does Chen Xin run from the inland

to the coast?

Now all the transportation systems have been shut down due to the impact of

the meteorite. The country may have secret routes, but how can this kind of

thing be opened to ordinary people like Chen Xin?

And you can use this secret line, Chen Xin ran a hammer and stayed in the

country's secret bunker.

As for the official refuge, that is indeed an option.

There is only a core issue here, and that is how should Chen Xin let the

closed official shelter open the door for him under the circumstances of the

fire. UU reading www.uukANAshu.com

You should know that even Chen Xin’s own refuge door is a 12 cm thick solid

metal explosion-proof door, let alone knocking with your hand, you just hit it

with a hammer on the outside, you may not hear it inside, let alone for safety

reasons, Chen Two new doors were installed.

One can imagine what the gate of the official refuge should be like.

So Chen Xin hadn't considered the option of escape from the beginning.

If I just don’t escape, what should I do to survive?

The ventilation system has now reached its limit. Unless I change to a

stronger new ventilation system, I will end up being smoked to death in this

self-made refuge!

and many more! Chen Xin suddenly felt aroused and thought of an important

point he had overlooked.

He can indeed change to a stronger ventilation system, because he has a

system!

Chen Xin, who thought of the system, hurriedly called out the system

interface, and then directed his sight to the ventilation duct of his refuge.

As expected, the ventilation duct in the line of sight lit up, and an upgrade

plan was given.

"Natural ventilation system"

"Upgrade plan 1: Upgrade filter material, improve air filtration level,

increase forced mechanical ventilation function, upgrade required survival

point 100"

"Upgrade plan 2: Upgrade pipe material, increase insulation level, increase

temperature adjustment function, upgrade required survival point 100"

Chen Xin didn't even think about it, so he directly chose the first upgrade

plan.

With his confirmation, the grid-like light appeared again in the realization

as it was when the system was started for the first time, but this time the

light only covered the ventilation duct.

Soon, the brilliance dissipated, and the ventilation ducts of the Chenxin

Refuge had been renewed and the upgrade was completed.