Cool your entire home with this 12 000 BTU dual hose portable air conditioner 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. This very powerful 12 000 BTU Unit can cool areas up to 450 Sq./Ft. (20' x22.5') Use in your home, apartment, mobile home, office, classroom, garage, workshop, computer equipment rooms, boat, camper, vacation or pool house.