Hi Vlad,

“I and other 10-15 people sit there with no enough oxygen to feel energetic while working.”

Since you mentioned you are new and not yet in a position to talk to the management how about considering something like befriending some or gathering all of these 10-15 people to discuss this out with the Management. I’m sure if its about oxygen then they too might be having the same issue. When that discussion happens you can sneak-in your points too or at least nod in agreement if you are not comfortable because you are new.
If all these people are hesitating and cannot go and speak up verbally then write a letter with the list of issues which will not contain any single person’s name at the bottom but will have the team’s/project’s name and hand it over to the management showing that it is on behalf of all.

Regards,
VJ.