If you have a space in your home that needs a proper air-conditioner for cooling, but lacks windows or landlord approval for installation – this model would be ideal as it doesn’t require any outdoor venting whatsoever. It’s called the Ventless Portable Air Conditioner and quietly provides a heavy-duty 7,000 BTU of cooling power – expelling the warm air to the rear as it cools a room as large as 225 square feet. Including a washable filter to purify the air and a dehumidifier that collects water in a removable tank, the Ventless Portable Air Conditioner is available now from Hammacher Schlemmer for $499.95.