Weight tells you what's actually inside. A dehumidifier's capacity depends largely on how much copper is in the coils — more copper means better heat exchange and more consistent output over time.

The DryPrime 35B weighs 39 lbs and pulls 75 pints/day at 86°F · 80% RH, 50 pints/day at 80°F · 60% RH, and 36.5 pints/day at 65°F · 60% RH. Some units claim similar numbers but weigh 30–34 lbs — because they measure at extreme conditions (95°F, 90% RH) that most homes never reach.

We show you three numbers across real-world conditions. Most brands show one.

Dehumidifiers work similarly to air conditioners, which also emit warm air during operation. Although this warm air slightly increases the AC's cooling energy use, it reduces the AC's dehumidification burden. By letting your air conditioner (2000-3000 watts) focus on cooling rather than dehumidifying, running a dehumidifier (500 watts) will typically lower your overall energy bill. Stronger dehumidifiers emit more warm air, while weaker ones emit less. We’ve observed that some consumers are pleased when their new dehumidifier emits less warm air than their old one. However, this often simply means that the new unit has a lower dehumidifying capacity. As mentioned above, the amount of warm air emitted by the dehumidifier does not increase your electricity bill. In fact, it can actually reduce it (counterintuitive but true—you can search for more information if interested.)

Those small units use semiconductor (Peltier) technology instead of a compressor. They draw 60–100 watts and work in very small, enclosed spaces — a closet or a bathroom cabinet. For anything larger than 300 sq ft, you'd need several of them running at once to see any real change in humidity.
A compressor-based unit like the DryPrime 35B uses more power (350W) but removes moisture 5–6 times more efficiently. One unit handles a basement, a living room, or a garage — on its own.

It depends on how sensitive you are to noise. At 43 dB, the DryPrime 35B is quieter than most compressor dehumidifiers — but it's not silent. In a large bedroom where the unit is far away, most people sleep through it. In a small bedroom where you're a few feet away, you'll notice it.

For basements, garages, living rooms, and laundry rooms, it's the right fit. If your primary concern is the bedroom and noise is a dealbreaker, the Sleep mode reduces the fan speed for lighter overnight operation.