Pre-OrderQuest 155 Overhead Dehumidifier
£2,695.46£2,994.95Save £299.49
Pre-order – we’ll dispatch when it arrives
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Free UK mainland delivery over £90.00, otherwise £6.95. Order by 2pm for same-day dispatch, Monday to Friday. Details
Questions about this product? Ask us or see delivery & returns.
Description
The Quest 155 Overhead Dehumidifier is a powerful solution for managing humidity in both indoor and outdoor growing environments. Ideal for serious growers and dedicated gardeners, this unit ensures optimal conditions for plant health and productivity.
Key Benefits:
- Exceptional Capacity: Removes up to 71L of moisture per day, making it perfect for large spaces with high humidity levels.
- Energy Efficient Design: Utilises advanced technology for low energy consumption, helping you save on operating costs while maintaining performance.
- Space-Saving Installation: Can be mounted overhead, maximising floor space and promoting better airflow around your plants.
- Robust Build Quality: Constructed with durable materials to withstand the rigours of both commercial and residential settings.
- Intuitive Controls: Easy-to-use digital interface for quick adjustments and real-time humidity monitoring.
- Whisper-Quiet Operation: Designed to run quietly, making it suitable for various environments without disturbing your space.
- Automatic Restart Feature: Automatically resume operation after a power outage, ensuring uninterrupted humidity control.
Enhance your growing conditions and protect your plants from excess moisture with the Quest 155 Overhead Dehumidifier - your trusted ally in fostering a healthy garden.
***PLEASE NOTE WE SUPPLY QUEST PRODUCTS TO ORDER - LEAD TIMES MAY VARY***
Key facts
| Type | Overhead dehumidifier |
|---|---|
| Brand | Quest |
| Removes | Up to 71 litres of water a day |
| Mounting | Hangs overhead to free floor space |
| Controls | Digital |
| Auto restart | Starts again by itself after a power cut |
| Supply | Made to order; lead times vary |
| Maker's part number | 400030 |
| Product code | 11033 |
| Category | Humidity Control |
How to use
Hang the unit overhead with the Quest 155 hanging bracket kit, which frees floor space and helps air move round the plants. Set the humidity you want on the digital controls.
The bracket kit, the Quest 155 MERV 13 filter and the DEH 3000R controller are under Quest parts and controller. For smaller rooms see the Quest 70. To find the humidity to aim for, see the VPD chart.
Questions
How much water does it remove?
Up to 71 litres a day.
Is it in stock?
Quest products are supplied to order, so lead times vary. Contact us for the current lead time.
Do you sell spare filters?
Yes, the MERV 13 filter for the Quest 155, under Quest parts and controller.
Growers’ guides
- VPD Chart: What Vapour Pressure Deficit Means for Your PlantsVPD explained in plain terms, with a chart by temperature and humidity, the ranges to aim for at each stage, and how to measure and control it.
- The Importance of Airflow, Temperature & Humidity in a Grow RoomCreating the perfect environment inside your grow room isn’t just a matter of comfort for your plants - it’s the foundation of healthy growth, efficient…




