Ambiance 12000 BTU Mobil Air Conditioner, Dehumidifier, Fan & Heater Cool your entire home with this 12 000 BTU Compact unit which is easily moved from room to room with built-in caster and handles.There is no WATER TANK TO EMPTY- CONDENSATION IS ELIMINATED through the exhaust. Today???s homes and offices are built tighter for energy efficiency but trap millions of microscopic particles than can be irritating and even harmful.The AMAC-12000 provides a true air filtration system by drawing fresh air through the intake duct and eliminating stale air through a separate exhaust duct.