A quiet room is 30-40 decibels. This electrolux vaccuum cleaner is 77 decibels. That is about the same as the Park La Brea basement fans that run 24/7. And The Park La Brea Apartent Tower air conditioners run at 80+ dBA, increasing the sound levels about 20 decibels in adjoining units which equals a fourfold increase in loudness. Los Angeles Air Conditioner Noise Hotline: Dial 311
