For our three-week trip to Greece with our motorhome we were provided with a passive cooler by QOOL. We tested it extensively during the trip and are completely convinced.
Since our journey was very long, we used the QOOL Box as an additional cooling system to our fridge.
We measured the temperature everyday to make sure our food stays fresh for as long as possible. The temperature in the box was about 3 degrees for the first 5 days and only increased by 3 degrees for the next 5 days. It is important to mention here that the QOOL Box stood in the middle of the sun by the sea and yet the temperature in the box remained cool. Through our fridge we were able to pre-cool the batteries after 10 days and thus survive the 3 weeks perfectly.
In conclusion, the high-quality QOOL Box is a great addition to our refrigerator in ourmotorhome, because it was not enough for such a long journey. The QOOL box allowed us another 30 liters to keep drinks cold and to store food in between. Thus, the unique technology of the QOOL Box is definitely worth its price.
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