Meet the Quest 100 Overhead Dehumidifier (50Hz) — a compact, high-efficiency, industrial-grade dehumidifier built for tight, climate-sensitive spaces where consistent humidity control is critical. Ideal for small grow rooms, dry rooms, storage areas, and controlled environments, the Quest 100 delivers powerful moisture removal in a footprint designed to save space.
Featuring patented M-CoRR Technology, it removes up to 44 litres per day (at 26.7°C / 60% RH) with impressive efficiency, while staying compact and practical for overhead or space-conscious installs. Unlike many traditional units, the internal drainage system eliminates the need for a P-trap, making installation simpler and faster. A corrosion-resistant base supports long-term durability in humid commercial environments.
Control is easy and precise with onboard digital controls, offering accurate RH management, maintenance alerts, diagnostic insights, and a dark mode option for light-sensitive zones.
Engineered and assembled in the USA, the Quest 100 is built for dependable, “set-and-forget” performance.
Powerful moisture removal: up to 44L/day (26.7°C / 60% RH)
High efficiency: 3.2 L/kWh energy factor (26.7°C / 60% RH)
Compact overhead-ready design for tight spaces
Patented M-CoRR Technology for performance + efficiency
Internal drainage design — no P-trap required
Onboard digital controls with RH management, alerts + diagnostics
Dark mode for light-sensitive environments
MERV 13 air filtration for cleaner airflow
Variable speed EC motor fan for efficient air movement
Designed for 50Hz markets (AU/EU compatible)
At 26.7°C | 60% RH
Water removal: 44 L/day
Efficiency: 6.7 pints/kWh
Energy factor: 3.2 L/kWh
Current draw: 2.5 A
Power: 733 W
Total BTU: 6,200
At 23.9°C | 50% RH
Water removal: 29.3 L/day
Efficiency: 5.0 pints/kWh
Energy factor: 2.4 L/kWh
Current draw: 2.2 A
Type: Refrigerant dehumidifier
Airflow: 280 CFM
Operating temp: 13°C min – 35°C max
Supply voltage: 230 V
Dimensions: 61 (L) × 40.6 (W) × 36.8 (H) cm
Weight: 27.2 kg
Controls: Onboard digital controls + low voltage terminal block
Filter: MERV 13 | 30.5 × 35.6 × 2.5 cm
Recommended breaker: 15A (EU/AU/ZA) | 13A (UK)
Power cord: 3m FEM IEC 60320-C13
Refrigerant: R454b | 482 g (17 oz)
Drain port: 1.9cm threaded NPT
Fan: Variable speed EC motor