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According to the manufacturer, the DeLonghi Pinguino PAC EM90 Silent air conditioner can cool your room before bed and keep doing so once you go to sleep thanks to its ‘quiet mode’. We sent this air conditioner to our test lab to check if that’s really the case. Read the full review for our verdict.

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What's included?

  • What is it?
  • What’s it like to use?
  • How energy efficient is it?
  • Is there anything I should watch out for?
  • Is there anything else I should know?
  • Should I buy it?
KEY TEST RESULTS
Time taken to cool room by 10 degrees
Ease of use
Temperature distribution across the room
  • Mar 2024Last checked by Which?
  • May 2022First reviewed by Which?
  • Jul 2021Released