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Cannabis Dehumidifiers

Dehumidifiers for cannabis grow and drying rooms from Abatement Technologies, AlorAir, and XPOWER. LGR models hold tight humidity setpoints to protect plant health, prevent bud rot, and control mold during cure.

Original price $1,112.00 - Original price $2,799.00
Original price $1,112.00 - Original price $2,799.00
Original price $1,112.00
Current price $2,148.00
$2,148.00 - $2,148.00
Current price $2,148.00

XPOWER XD-85L2 LGR Dehumidifier – 85 PPD AHAM, 145 PPD Sat, 180 CFM, 115V

XPOWER
In stock

XPOWER XD-85L2 Commercial LGR Dehumidifier The XPOWER XD-85L2 is an LGR dehumidifier rated at 85 PPD at AHAM conditions (80°F/60% RH) and 145 PPD a...

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Original price $1,112.00 - Original price $2,799.00
Original price $1,112.00 - Original price $2,799.00
Original price $1,112.00
Current price $2,148.00
$2,148.00 - $2,148.00
Current price $2,148.00
Save up to 23% Save %

Cannabis Dehumidifiers for Grow Rooms, Drying Rooms, and Cure Operations

Why Cannabis Cultivation Requires Precision Humidity Control

Cannabis cultivation operates within a narrow humidity envelope that shifts at each phase of the plant lifecycle: 70–75% RH during cloning, 60–65% during vegetative growth, 50–55% during early flower, and 35–45% during late flower to prevent bud rot and powdery mildew. Drying rooms hold 50–55% RH at 60–65°F for the 7–14 day dry-down period, then cure rooms maintain 55–62% RH for the multi-week cure that develops terpene profiles. Each transition requires the dehumidifier to hit a different target without overshooting, which makes precision RH control more important than raw extraction capacity. LGR (Low Grain Refrigerant) dehumidifiers deliver this precision because their effective operating range covers the full cannabis humidity envelope from cloning through cure.

Sizing Cannabis Dehumidifiers by Plant Count and Stage Phase

Cannabis dehumidifier sizing follows transpiration rate per plant per phase. A flower-stage cannabis plant transpires 1–1.5 liters of water daily; calculate plant count × transpiration × hours per day to get total moisture load. The XPOWER XD-85L2 (85 PPD AHAM) and VIKING CD-90L (85 PPD) handle small flower rooms with 20–40 plants. The XD-125Li and XD-130Li (125 PPD with Bluetooth telemetry) fit mid-size flower rooms at 50–80 plants. The XD-165L (165 PPD) and Abatement AT200C (110 PPD with WiFi) cover large flower rooms and commercial cultivation operations. The AT250RS at 266 PPD handles whole-facility commercial cannabis operations or large drying/cure operations where moisture load is concentrated. Bluetooth and WiFi telemetry let cultivation managers monitor humidity progress remotely during sensitive late-flower and dry-down phases.

Related: LGR Dehumidifiers · Grow Room Dehumidifiers · All Dehumidifiers · Mold Remediation Dehumidifiers

VPD Optimization and Bud Rot Prevention

Modern cannabis cultivation increasingly uses Vapor Pressure Deficit (VPD) rather than raw RH for environmental targeting. VPD calculation combines temperature and humidity to derive plant transpiration drive — the dehumidifier maintains the RH side of the VPD equation. Late-flower bud rot (Botrytis cinerea) thrives at humidity above 55% with poor air circulation; precision dehumidification below 50% RH during the final 2 weeks of flower is the primary prevention measure beyond pruning and airflow. Auto-restart after power interruption is critical for cannabis applications because a tripped circuit during the 12-hour dark cycle can spike humidity rapidly and damage a developing canopy. The dehumidifiers in this collection include auto-restart as standard.

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