To fully understand the technologies and the stakes behind our cooling devices.
How does a cooler's compressor really work? Why is an evaporative cooler less effective in humid air? This category goes beyond simple buying advice to explore in depth the technologies, the physical principles, and the stakes (energy, environmental, regulatory) that run through the world of domestic and portable cooling.
An evaporative cooler that seems to do nothing on a muggy day isn't broken: it's physics. How evaporation works, its theoretical ceiling in humid air, and what ultrasonic misting really changes.
Published on 11 September 2026 by Julien
Seeing “R290” more often on new air conditioners and fridges? This refrigerant, with an almost negligible climate impact, is steadily replacing older fluids under a strict EU regulation.
Published on 27 August 2026 by Christophe
“Air conditioner without an exhaust hose” is one of the most common searches before buying a portable AC, and one of the most misunderstood. Three very different technologies hide behind that phrase: here's which one genuinely delivers, which is an honest compromise, and which isn't air conditioning at all.
Published on 8 August 2026 by Christophe
Class A, a letter, kWh per year, a QR code... Our guide decodes the energy label so you can pick a fridge or an air conditioner that is genuinely efficient.
Published on 1 August 2026 by Yoni
Compressor, refrigerant gas, vacuum insulation: how does a compressor cooler actually get below 0 °C, miles from any mains socket? We take the principle apart, step by step.
Published on 1 August 2026 by Pierre