Cyclone Desert Dehumidifier 90 L/day – 90 L at 30 °C/80% RH with compressor and continuous drainage

Cyclone Desert Dehumidifier 90 L/day

The mid-range model in the Desert range: compressor, digital humidistat and direct drainage without a tank, with an airflow of 1,000 m³/h to circulate air throughout an entire room.

Capacity and test conditions

90 L/day measured at 30 °C and 80% relative humidity.

The figure alone means nothing without its test conditions, and this is what causes the most confusion when comparing dehumidifiers: liters per day are not comparable between brands. Cyclone and VDL publish their figures at 30 °C / 80% RH, which are very favourable conditions for a dehumidifier. Quest publishes according to the American AHAM standard at 26.7 °C / 60% RH, which is considerably more demanding: under those conditions, this same unit would deliver a significantly lower figure. Comparing 90 L/day at 30/80 with 44 L/day AHAM is not comparing like with like.

Specifications

• Capacity: 90 L/day at 30 °C / 80% RH
• Technology: compressor
• Refrigerant: R410A
• Power consumption: 1,075 W
• Airflow: 1,000 m³/h
• Control: digital humidistat
• Drainage: direct, with a 1 m hose included. No tank
• Dimensions: 51 × 45 × 84 cm
• Operating temperature range: not published by the manufacturer

Transparency note: some distribution product sheets swap the power consumption figures for the 90 L and 138 L models, attributing 1,350 W to this model. This is inconsistent with the range's scaling. The correct power consumption for this unit is 1,075 W.

No tank: fixed installation

It has no tray or tank to empty. The water drains through the included 1 m hose, so it requires a drain or a container at the installation point. In return, it runs continuously without daily maintenance.

About R410A refrigerant

It uses R410A. It is functional and very widely used, but it is not an environmentally friendly refrigerant: its GWP is 2,088 and it is subject to the European phase-down schedule. We state this clearly instead of repeating the "Eco refrigerant" marketing label found on some product sheets.

Honesty about drying

Drying requires a stable 55–62% RH for 10–15 days at 18–20 °C. We do not recommend this unit for drying: the manufacturer does not publish the operating temperature range and, as it is a compressor unit with no defrost data, performance cannot be guaranteed below around 15 °C. Its intended use is a production grow room at normal operating temperature.

How to size it

An indoor grow evaporates almost all the water that is applied, so size it based on liters of water applied per day, not square meters. And adjust the catalogue figure downwards: 90 L/day is measured at 30 °C / 80% RH, conditions your room will rarely maintain for long.

Note on the images: the three Cyclone Desert models (60, 90 and 138 L/day) share the same chassis and there are no capacity-specific photographs. The images show the entire range and do not reflect the exact size of this model; use the dimensions as a guide.

At GrowIndustry we only work with proven quality products and trusted brands.

Every item goes through a check before shipping to make sure it arrives in perfect condition and ready to use.

Your satisfaction is our priority.

1. Choose a permanent location: without a reservoir, the unit is designed to remain installed.
2. Connect the included 1 m drain hose to a drain or container, ensuring a proper slope.
3. Keep the inlet and outlet grilles unobstructed to allow the 1,000 m³/h airflow.
4. Set the target humidity on the digital humidistat according to the growth stage.
5. Periodically check the drainage and clean the air inlet filter.
6. Do not use it in a drying room: the manufacturer does not publish the operating temperature range, and performance cannot be guaranteed below 15°C.