90 Pint Dehumidifier with Built-in Pump, 35 Pints DOE, 6000 Sq Ft, 2.2 Gallon Tank, 41 dB

Machines that shift this much water tend to be loud enough that they get moved to the far corner of the basement, where they never quite reach the rest of the floor. Or they get switched off at night, and the room climbs back before morning.

41 dB and a screen off function mean it can stay where it works rather than where it is out of earshot. The 1 to 24 hour timer handles the rest, and with the pump running there is no tank to fill and stop the machine overnight.

Three circles, and the smallest is the useful one

90 pints a day is measured at 95F and 90% relative humidity, hot and saturated. At 86F and 80% the manufacturer publishes 50 pints. At 65F and 60%, the 2019 DOE test condition, it publishes 35. That last figure is what a Canadian basement will actually see, and 35 pints a day is still a large capacity by household standards.

Both hoses are in the carton

Pump drainage lifts water up and out through the 6.5 ft hose, which is the answer when the sink or window is higher than the machine. Gravity drainage uses the 2 ft hose to a floor drain below it. The 2.2 gallon tank is there for rooms with neither, though on a machine removing 35 pints a day on the DOE test you will not want to rely on it for long.

Quiet is the surprise on a machine this size

41 dB sits near the low end of the manufacturer's own scale, closer to a library at 20 than a car at 70. Screen off takes care of the light. Together they let a 90 pint machine live in a room people use rather than being exiled to a far corner where it does less good.

What the filter layers claim to do

The manufacturer describes a washable filter with a dust pre-filter plus formaldehyde, silver ion and activated carbon layers, and states a filtration rate of 99.99% or better. Those are its own figures rather than an independent test, so treat it as a dust and odour screen with some extra media. Rinsing it regularly is what matters, because a clogged filter slows any dehumidifier down.

Sends water upward through a 6.5 ft hose of its own, so the machine does not have to stand beside a floor drain.

90 pints a day at 95F and 90% RH, 50 pints at 86F and 80%, and 35 pints on the 2019 DOE test at 65F and 60%.

The larger of the two compressors offered in this cabinet. The 70 pint version is rated to 4,500 sq ft on the same basis.

Detachable, with a handle on each side, which is worth having when it holds this much water.

The display switches off completely for night use, and the timer can stop the machine before morning.

Defrost clears the coil in a cool basement, and internal drying dries the machine out before it goes into storage.

The panel locks against accidental changes, and the machine stops before the tank can spill.

A clip on the back holds the 6 ft cord so nothing trails when the machine is repositioned.

Ships from a Canadian warehouse. Free shipping on orders over $150. Some remote areas, PO boxes and surcharge regions may be excluded or charged extra.

Return within 14 days of purchase, unused, in original condition and packaging.

Covered directly by the manufacturer under their warranty terms for material and manufacturing defects.

35 pints a day on the DOE test is roughly twice what a 54 pint household machine manages. This is the size to pick when something smaller has already failed to hold the level.

The pump and its 6.5 ft hose let the water go up to a laundry tub or out through a window well, which gravity cannot do.

41 dB with the screen off is unusual at this capacity, so it can sit in a rec room or a bedroom rather than a far corner.

It is a compressor machine with auto defrost, so a heated basement suits it. An unheated garage near freezing calls for a desiccant unit instead.

What we stand behind

• Ships from a Canadian warehouse, with free shipping on orders over $150
• 14 day returns on unused items in original condition and packaging
• Covered by the manufacturer's own warranty for material and manufacturing defects
• The pump, both drain hoses and the washable filter are all included, with no separate pump to buy

How is this different from the 70 pint version?

The compressor. Both share the same cabinet, tank, hoses, panel and wheels. On the DOE test this one returns 35 pints a day against 24, and the manufacturer rates its coverage at 6,000 sq ft against 4,500. It weighs two pounds more. Pick on the size and dampness of the space rather than on the headline pint number.

Why is the DOE figure 35 pints when the title says 90?

They are different test conditions. 90 pints a day is measured at 95F and 90% relative humidity, 50 pints at 86F and 80%, and 35 pints on the 2019 DOE test at 65F and 60%. The US Department of Energy adopted the cooler condition because it reflects a real basement. ENERGY STAR publishes a guide showing every model drops by a similar proportion, so compare DOE to DOE.

Should I use the pump or the gravity hose?

Use gravity if you have a floor drain, sump or downhill run lower than the machine, because it is simpler and there is no pump to run. Use the pump when the only drain is above the unit, such as a laundry tub or a window well. Both hoses are in the carton, so you can change your mind without buying anything.

Will it help with condensation and a musty smell?

It controls the moisture behind both. Health Canada advises keeping a home between 30% and 50% relative humidity, and running a dehumidifier in damp areas or when moisture condenses on cold surfaces like window panes, noting that mould can begin to grow in an area with excess moisture within 48 hours. It is not a treatment for growth that is already there, and water entering through a wall or floor still needs fixing.