Minister Lu was truly stunned. He stayed underwater for a little while longer, then finally couldn't help bursting up to the surface.
After climbing out of the pool, he eagerly took the bubble off his head and asked Qin Lin, "Boss Qin, it seems like this bubble can keep supplying oxygen indefinitely."
Qin Lin smiled and explained, "Amazing, isn't it, Minister Lu? It's all thanks to the crystals growing inside the bubble. The crystals absorb the gas people breathe out, then react and produce oxygen."
"Most importantly, when I tested it, I found that the bubble could also filter harmful gases. It's truly remarkable."
"It can filter harmful gases." Minister Lu murmured, his eyes shining. It could supply oxygen and filter harmful gases. He could already think of all the places it might be used.
Then he immediately asked, "Boss Qin, how long can the bubble supply oxygen?"
Qin Lin explained, "Based on my analysis of the crystals, it can provide enough oxygen for one person for about a day."
"One... one day!" Minister Lu was stunned.
That was practically incredible.
Take firefighters, for example.
When they went into major fires to put them out, they often had to carry oxygen tanks. If they were fighting a fire for a long time, a tank's ten hours of oxygen wasn't enough, and they had to replace it.
Another example: the oxygen tanks firefighters carried weighed dozens of pounds.
When they were fighting a fire, that weight on their backs was a huge burden.
With these bubbles, that wouldn't be a problem. A full day's worth of oxygen meant they could simply ditch that burden of dozens of pounds.
More importantly, the bubbles could also filter harmful substances. In a fire, they would be an incredible asset.
In some respects, Bubble Grass