ALORAIR builds dehumidifiers for serious moisture problems. The Sentinel HDi90 is their heavy-duty solution, engineered for spaces where damp air settles and stays. Its key differentiator is the ducting option, letting you install it permanently in a crawl space or closet while treating the air in a distant room.

Performance is measured in pints, and this unit removes up to 198 per day in saturated conditions. In practical terms, that means it can handle a 2,600 square foot basement, warehouse, or commercial space. The built-in condensate pump is essential. It automatically lifts water up to 19 feet vertically, so you can drain directly into a sink or out a window without needing floor-level access. Automatic defrost ensures it keeps working in cooler environments.

Operation is notably quiet for its capacity, a relief in offices or living areas. While compact and portable with its handles, this is fundamentally an industrial-grade tool. It’s built for continuous duty in the spaces that need it most, from a musty museum storage room to a humid restaurant kitchen after the dinner rush.