To know
How does the cooler work?
Our cooling technology cannot be compared to other cool boxes. If you combine the QOOL Box with the QOOL Temperature Elements, the temperature inside can be kept constant for many days - without a power supply, in any climate zone, all over the world.
The QOOL Box achieves its outstanding thermal insulation performance through vacuum insulation panels that are installed on all sides of the box, in the lid and also in the base.
The QOOL Temperature Elements contain so-called phase change material and can absorb or release energy at a certain temperature.
If you combine the QOOL Box with the QOOL Temperature Elements, the temperature inside can be kept constant for many days.
Here you can learn more about how the technology of our QOOL products works
test reports
Outdoor Empire tests 54 coolers. Only one lasts 10 days.
54 passive cool boxes, a heatwave in Idaho, no electricity. The US YouTube channel Outdoor Empire conducted the largest cool box comparison ever last year. The QOOL Box eco+ was the last box to sti...
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Extreme Test: How Robust the QOOL Box Really Is
The QOOL Box was developed as a premium cooler that performs even under demanding conditions. But how much can it really withstand? To answer this, we conducted two extreme tests and specifically c...
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QOOL & Ruuvi set new standard for passive cooler monitoring
QOOL x Ruuvi – Precise temperature monitoring meets power-free cooling technology QOOL and Ruuvi combine their strengths: high-tech coolers meet smart Bluetooth sensors. For reliable, real-time ...
Read moreTips & Tricks
QOOL Temperature Elements richtig vorkühlen: So holst du 10 Tage Kühlleistung heraus
10 Tage Kühlleistung ohne Strom sind möglich. Aber nur, wenn die Temperature Elements richtig vorbereitet sind. Schritt-für-Schritt-Anleitung für Box M und Box L.
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How do I clean my cooler properly?
This is how you keep your QOOL box hygienically clean! In this video, we show you the best tips for properly cleaning and caring for your QOOL cooler – simple, quick, and effective.
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How do I pre-cool the Temperature Elements?
This is the best way to cool your QOOL Box! In this video, we show you how to properly pre-cool the QOOL Temperature Elements to achieve maximum cooling performance.
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