Environmentally friendly and efficient
Compared with other dehumidifiers with the same dehumidification capacity, the Preair PRO500 greenhouse dehumidifier consumes less energy. Large spaces use Preair ultra-efficient scroll chiller energy-saving units, which can save up to 40% of energy consumption.
Large Dehumidification Capacity
This greenhouse dehumidifier can dehumidify 500 pints per day at AHAM and is specially designed for the horticulture industry, especially for commercial cannabis cultivation. PREAIR PRO500 is one of the best choices for commercial growers.
Long service life
Preair PRO500 dehumidifier for grow room has a compact design and uses utility model patented technology, high-performance core components, and goes through strict testing, which can ensure stable, reliable operation and last long in harsh environments.
Cost-effective
Preair's advanced ERP management system efficiently integrates supply chain resources and realizes large-scale production, providing customers with high-quality products with "leading technology, exquisite workmanship, excellent quality, and reasonable price".
| Model | PRO500 |
| Supply Voltage | 230V / 60Hz |
| Current Draw | 13.3 Amps |
| Power | 2900 Watts |
| Airflow | 1648 CFM |
| Water Removal (@ 30℃/80%RH) | 800 PPD |
| Water Removal (@ 26.7℃/60%RH) | 500 PPD |
| Water Removal (@ 40℃/20%RH) | / |
| Water Removal (@ 32℃/90%RH) | 950 PPD |
| Functioning Temperature Range | 41℉ - 100.4℉ |
| Functioning Humidity Range | 20%RH - 85%RH |
| Humidity Setting Range | 30%RH - 90%RH |
| Noise Level | 75 dB |
| Refrigerant Type / Amount | R410A / 105.8oz |
| Display Board | LCD Panel |
| External Controller | Optional |
| Filtration | MERV11 |
| Housing | Sheet Metal |
| Drain Port Connection | 3/4″ Threaded NPT |
| Timing | / |
| APP | / |
| WIFI | / |
| Timer | / |
| Net Weight | 308.6 lbs |
| Gross Weight | 385.8 lbs |
| Unit Dimensions | 49.2*31.5*31.9 inch |
| Package Dimensions | 53.3*35.4*39.3 inch |
| Loading Quantity (20'/40'/40') | 20/42/42 |
| Warranty | 3-Year |
| OEM/ODM | Yes |
Space saving
The PRO500 large dehumidifier for greenhouse can be installed on the wall or ceiling, increasing the available space. Reduce the space waste of greenhouse cultivation. The 500 PPD dehumidifier is specially designed for horticulture, cannabis, and other greenhouse cultivation. Concealed installation, can be hung or hidden overhead. Comes with a remote control, there are two ways of panel operation and remote control, a user-friendly design.
Automatic shut-off
Automatic shut-off when reservoir is full of condensate, to protect the unit from excess moisture itself.
Precise humidity control
The powerful chip of the Preair dehumidifier can realize full automatic humidity control. Keep the indoor environment at the target humidity in the long term. In addition, this PRO500 greenhouse dehumidifier operates as low as 3 L/KWH - which means the machine is energy-efficiency and cost-saving. This unit also can easily cope with various humid environments.
Automatic defrosting
Frost can form on the evaporator or condensing coils when the temperature drops below 65° F, which can reduce the dehumidifier's efficiency or performance. Automatic defrost prevents damage by turning off the compressor until the unit defrosts.
The PRO500 dehumidifier is also called a green plant dehumidifier, which is mainly used to control the humidity of indoor green plant growth. Widely used in indoor cannabis cultivation. This unit is an industrial size dehumidifier that has good performance in large areas. If you don't know what type of dehumidifier you need, welcome to contact us.










