"Yeah, this should be one of the tomb's corridors!"
Of course, Luo Feng did not immediately head down into the tomb. Instead, he had gone back to his camp to prepare several coil of ropes.
As for gas masks, Luo Feng prepared no such item.
Instead, he intended to use candles as a substitute.
As long as the candle was able to burn normally, it meant the atmospheric content within the tomb was normal.
If it was unable to burn normally, however, it meant that there were other gaseous substances contained within the air.
In general, most poisonous gases were non-flammable.
After tying the candle with a rope, Luo Feng slowly let down the candle.
After reaching a certain depth, he then pulled it back up.
The candle did not burn quickly nor did it go out, which meant that the nitrous content within the tomb's atmosphere was normal.
