Mr. Cool Universal Series Air HandlerUniversal Series Air Handler Click Here For Technical Specs Much Quieter Ideal for Sound Restrictions For every 10 Decibels (dBa) a sound is twice as loud making the Universal at 55 dB(a) less than half as loud as a conventional condenser at 73 dB(a). Slim Design Ideal for Zero Lot Lines Side discharge design takes less than half the area of conventional condensers. Perfect for city lots and between building applications where access is limited