35-Pint Dehumidifiers: One Number, Different Machines

A 35 pint dehumidifier is the most common size on the shelf for a bedroom or a condo, and the number guarantees very little. In the federal ENERGY STAR registry, units sold in this bracket carry tested capacities from 31.71 to 36.9 pints per day and burn between 335 and 388 kWh a year. Roughly 16% of spread in both directions, behind one figure on the carton. The bracket is a place on the shelf rather than a specification.

What sits behind the number 35

Capacity on the box and capacity in the registry come from different test conditions. Manufacturers quote 95 °F and 90% relative humidity; DOE tests at 65 °F and 60% under 10 CFR Part 430, Appendix X1. In this class the gap is milder than in the larger sizes, and the printed number is still a rounded label.

Inside the bracket sit several genuinely different machines. Registry capacities run 31.71, 32.0, 32.46, 33.13, 35.2, 35.3, 35.32, 35.78, 35.85, 35.94, 36.18, 36.39, 36.71 and 36.9 pints per day. Those are not trim levels of one model. They are separate designs with different compressors, collapsed into a single marketing label.

What it costs you: between two units both called 35-pint, the real difference reaches 5.19 pints of water a day and 53 kWh of electricity a year. Compare on the DOE figure, not the label. Both test methods are set out on the pint ratings page.

Who this class is for

One or two rooms: a bedroom, an office, a condo, a small apartment. A 35 pint dehumidifier is the right size where 50 pints would be more machine than the job needs, and where the difference in noise and running cost shows up every day.

The Florida angle matters more here than in the larger classes. Noise is the most frequent complaint theme in our Florida review slice, raised in 15.6% of Florida reviews against 9.9% from owners in other states. The reason is runtime. A unit in this climate does not switch off for the season, so the sound becomes background to the house rather than an episode.

That inverts the usual advice about buying with headroom. For a bedroom the useful question is not which unit moves the most water, but which one you can sleep next to. Work out the size you actually need with the Florida dehumidifier calculator.

Where the class runs short: an open plan with a living room and kitchen sharing one volume of air, or drying construction out after a leak. That is 50-pint territory.

Models in current production

Read it top to bottom and the spread is the point. The most efficient record in the class is the Arecovas AR-DF005 at an IEF of 2.15; the hungriest is the Keystone KSTAD354G at 388 kWh a year, on a larger capacity.

What to compare besides the number

Who filed the certification. One machine under several badges is standard practice in this class as well. The Yoau/Shinco/UHOME filer lists 35.0 pints at an IEF of 2.02 under seven separate model codes. The JHS/Waykar filer lists 35.78 pints under six different brand names, among them Kesnos, Waykar and yaufey. Who files under which name is mapped in the ENERGY STAR registry breakdown.

Drainage. A smaller tank does not mean less water over a week, because the runtime is the same. Florida owners report a full tank twice as often as owners in other states, 13.0% of reviews against 6.5%, and mention a built-in pump least of all, 0.9% against 1.4%. Decide how the unit will drain before you buy it.

Electricity. Fifty-three kilowatt-hours a year looks like small change and matters here for one reason: the machine runs all year. IEF compares models directly, and a higher figure means fewer kilowatt-hours per litre of water removed.

What the registry does not carry. Noise ratings, build quality and service life are not published there. For those, the review data and recall history sit in the Florida scorecard.

Frequently asked questions

Is a 35-pint dehumidifier enough for a bedroom?

For a bedroom or a condo this class is sized for the job. Work from floor area and how much moisture enters the space rather than from the number on the carton.

What is the real capacity of a 35-pint dehumidifier?

Under the DOE test, anywhere from 31.71 to 36.9 pints per day depending on the model. Identical labels do not mean identical machines.

Is a 35-pint or a 50-pint dehumidifier better for a Florida bedroom?

For a single room, 35 pints is enough, and a 50-pint unit brings more noise and more electricity without doing the job any better. Noise is the complaint Florida owners raise most often in our review slice.

How much electricity does a 35-pint dehumidifier use?

Registry figures for the class run from 335 to 388 kWh a year. Compare on IEF: the higher it is, the fewer kilowatt-hours per litre of water collected.

Why do 35-pint models from different brands look the same?

Because they often are one design under different names. A single filer can submit several registry records with matching capacity and efficiency figures under separate brands.

Sources

• ENERGY STAR Certified Dehumidifiers, EPA and DOE. Export dated 28 July 2026, individual records re-checked 30 July 2026. data.energystar.gov
• DOE test procedure: 10 CFR Part 430, Subpart B, Appendix X1.
• Amazon Reviews 2023, McAuley Lab, UC San Diego. Citation: Hou et al., arXiv:2403.03952. amazon-reviews-2023.github.io
• Method notes: /methodology/