Best Buyhas theHoneywell MM14CHCS 14,000 BTU Portable Air Conditioner (Black/Silver) for a low $449.99 Free Shipping. Tax in most states. This HoneywellPortable Air Conditioner sells for at least $592 elsewhere, so you are saving an additional $142 (23%) off the next lowest priced vendor thanks to this deal. Portable air conditioner, heater, fan and dehumidifier with 265 CFM air flow Cool up to 550 sq ft or heat up to 400 sq ft Auto-evaporation system recycles the moisture in the air Adjust settings with ease viafeather-touch LED display or simple remote control 24-hour temperature control, quiet operation This comes with 1 year part and labor warranty, 4 years limited warranty oncompressor