They look like a small porthole surrounded by a red plastic outline.
Difficult to miss them on the heights of Al Bayt Stadium.
Air conditioning comes out in gusts this Sunday evening for the opening ceremony of the 2022 World Cup.
This was one of the big questions at the start of the Mondial.
Will the air conditioning be on regardless of the temperature?
The response is positive for the grand launch of the tournament and the Qatar-Ecuador match.
While the thermometer outside shows around 27 degrees Celsius, you lose nearly seven degrees once seated in the stands.
The air is even cooler in the brand new corridors and staircases, like the subways in the city of Doha.
Much more worrying heat in the afternoon
The environmental mismanagement represented by this World Cup is the subject of incessant criticism, this evening will not be that of reconciliation.
And the next matches of the competition, especially those which will be played during the day when the heat is much stronger, are not likely to reverse the trend.
We wanted to get closer to take a shot of these blowers, of which there are hundreds.
A security guard opposed an end of inadmissibility, while confirming that it was indeed air conditioning.
We had to descend quickly, just long enough to get our hair cut off by the power of the turbines.