Is residential air conditioning noisy?

We're thinking about getting air con but our bedroom walls aren't thick and I'm worried about noise. How loud is a typical wall-mounted unit when running?

Asked by Adam on 24th Apr 2026
Expert Trade Answers
"Air con units now are very quiet when running, most of the time you dont even notice the sound. An indoor units should if installed correctly be around 20-30dB which is a whisper."
Answered on 24th Apr 2026 - Member since Jan 2024 - report
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