TOSOT 35-pint dehumidifier (TST-NDHM-35WHT) review

TST-NDHM-35WHT is TOSOT’s middle capacity step in the discontinued Direct lineup: 35.27 pints per day in the detailed specification, a 1.5-gallon bucket and three fan speeds. The practical difference from the 20-pint model is a higher published rating and a larger cabinet; the collection method remains bucket or gravity hose, not a lift pump.

Earlier model: TOSOT labels the exact listing discontinued and unavailable. This review is for existing-owner, identity or used/clearance comparison, not a recommendation for a current new purchase.

The exact TST-NDHM-35WHT page links this 1500 × 1500 exterior image. Its bytes are the same as the family’s linked 20- and 50-pint images; the cabinet view cannot establish the 35-pint capacity or internal hardware, and TOSOT does not label it as photo versus render.

Manufacturer references: TOSOT’s exact TST-NDHM-35WHT page, the current collection listing and the document index. The official document index lists GDN35BB-A3EBA2A under this 35-pint product entry and links the exact TST-NDHM retail page, matching technical/certification documents and the family manual. The exact model-code crosswalk supports using that manual for the GDN identity.

The 35-pint class and the old 50-pint comparison

The direct page gives a detailed removal figure of 35.27 pints per day and a separate 2019 DOE-standard comparison value of 35 pints per day. Its older-procedure comparison is 50 pints. That older 50-pint figure should not be compared as if it used the same test as a newer 50-pint product; the test method matters. For a threshold in this finder, the detailed 35.27 figure is the conservative numeric fact. The label is not a promise of that amount under ordinary room conditions.

The same page displays a suggested 1,500–3,000 square-foot range. A broad room-area claim cannot account for ceiling height, open versus partitioned rooms, temperature, air leaks or a continuing moisture source. Use the area text only as a rough manufacturer prompt, not proof that one unit will condition a whole basement. The 41–90°F operating range also matters: this is not documented as an appliance for colder spaces below its listed range.

Its 1.5-gallon tank is useful only if you can empty it

The bucket holds nine pints, or 1.5 gallons, compared with seven pints in the 20-pint version and 13 pints in either 50-pint model. That middle tank is still much smaller than the maximum daily rating, so a high-moisture space can fill it quickly. Do not translate the pints-per-day rating into a time-to-full estimate. The actual collection rate varies, and the automatic full-bucket protection stops operation until water is removed.

If you have a floor drain below the unit, the exact model page lists a gravity hose and specifies a garden-hose connection with a ¾-inch female end. The route needs to descend without an uphill section or sag that traps water. This model has no built-in pump, so it cannot send condensate to a higher sink or window. The exact retail listing does not document operation with the bucket removed; plan around its fitted tank rather than treating a hose option as proof of bucketless use.

Cabinet, sound and operating routine

The exact page lists a cabinet 13.70 inches wide, 21.85 inches tall and 10.63 inches deep, with a dry net weight of about 36.4 pounds. Leave additional space for airflow, reaching the bucket and routing the hose. It lists casters, but rolling a unit does not make lifting it into a vehicle or over stairs effortless. If a strict carrying limit matters, compare the published dry weight separately from the water-filled bucket.

Three listed fan speeds have manufacturer sound ratings of 50, 48 and 46 dB; the page also gives airflow rates of 159, 141 and 118 CFM. These figures are product-table claims, not independently measured room noise or a guarantee of uniform drying. Controls include a 35–80 percent humidity setting range, a two- or four-hour timer, auto restart, automatic defrost, a washable filter and full-tank shutoff. The power entry is 115 volts, 540 watts and 4.8 amps. There is no documented app-control feature on the exact page.

For filter care, the exact retail FAQ recommends warm-water/mild-detergent cleaning every 30 days of operation. The crosswalked GDN35BB-A3EBA2A code appears on the family-manual cover, and that manual shows a filter alert after 250 operating hours. Those are separate manufacturer maintenance cues; use the unit’s indicator and the instructions supplied with it. The most useful owner routine is to keep the inlet clear, inspect the filter and bucket and make sure a gravity hose continues to slope to its drain.

When the 35-pint model is the better fit

For an existing exact TST-NDHM-35WHT, the clearest need is a 35-pint-class rating with a removable 1.5-gallon tank or a lower gravity-drain destination. It sits between the family’s smaller 20-pint unit and the much larger 50-pint cabinets. Choose the 50-pint no-pump model if the higher rating is important and a larger cabinet fits; choose the 50-pint pump edition only if you have a raised outlet and its exact pump instructions support the route you need. A pump should not be bought for a drain that already lies below the appliance.

Because this listing is discontinued and marked unavailable, current replacement parts, exact manual availability and condition need their own checks. A dehumidifier also does not fix a building leak or make an unheated room appropriate when it is colder than the stated operating range. Treat the 35.27 figure as a published class comparison, not a performance test in your home.