“The worst part is that it’s free”

While the heat wave transforms our nights into tests, the disappointment in the face of a fan that only brews hot air is huge. An architect, Leonardo Rogel, made the buzz on Tiktok by revealing a simple technique to finally produce fresh air with a fan. His secret? A simple damp towel, but placed in the right place.

The fan problem: “it only moves hot air”

Before delivering his secrets, the architect puts his finger on the problem that everyone knows: a standard fan does not cool the air. He just moved it. In the heat wave, this often amounts to blowing air at 28 ° C on oneself, offering a very limited and short -term feeling of freshness.

Based on this observation, the Mexican architect Leonardo Rogel explains in a video Tiktok (in Spanish) seen more than 3 million times that the key ishumidify the air before it is propelled by the device. This is where his technique takes on its full meaning.

The tip of the wet towel: the “air conditioning of the poor” explained

Forget the frozen water bottle placed in front of the fan. The architect’s trick is even simpler and is based on the principle of evaporation cooling.

The method is of childish simplicity:

1. Take a bath towel or a large cloth.
2. Wet it completely with cold water.
3. Write it very well so that it is simply damp and does not drop.
4. Flash or hang the towel Behind your fan.

Why behind? This is all the ingenuity of the trick. A fan sucks the air from the rear to project it forward. By passing through the damp towel, the air cools because the water, as an evaporating, absorbs heat. The fan will therefore suck this freshly cooled air and diffuse it in the room. The result is a much cooler and pleasant air flow.

Two other architect’s advice to maximize freshness

In addition to his flagship technique, Leonardo Rogel shares two other advice that is easy to implement.

• Spray the room: Before sleeping, use a simple atomizer to spray fine water droplets in the room. This increases the ambient humidity and helps to slightly lower the temperature.
• Place the fan at the window (at night): When the outside temperature is finally lower than that of your interior, place your fan on the window sill, turned inward. It will aspire the fresh air from outside to push it into the room, helping to cool it much faster.

“Each degree counts, and the best is that it’s free”

The architect concludes his video by recalling that if these tips do not replace real air conditioning, they make a notable difference. “With this time, each degree counts. And the best in all that is that it’s free,” he says.

In the comments, Internet users have shared their own experiences, often with humor. A Spanish user reacted to the window advice: “Fresh outdoor air, he says … Here in Spain, open the window is like opening the door of an oven!”. A remark that will find a certain echo in France during the heat wave.

However, others confirm that the techniques work, validating the ingenuity of these simple methods to find a little comfort without breaking the bank.