Quest Climate builds dehumidifiers designed for grow rooms, where humidity rises sharply during flowering and lights-off. This collection holds the Quest 100, Quest 200 and Quest 375 dehumidifiers for 50 Hz. Choose the model by the amount of water your plants release per day, which depends on plant number, size and watering; the larger models suit bigger rooms. Place the unit where it can draw air freely, connect a drain for continuous operation and control it with a hygrostat or climate controller. Read our article on Quest professional dehumidification, see all dehumidifiers and pair with climate controllers.
Questions & answers about Quest Climate
All growing questions →- Climate What is the ideal temperature in a grow tent? About 22 to 28 °C with the lights on, and no more than about 5 °C cooler when they're off. Read the answer →
- Climate What is the ideal humidity in a grow tent at each stage? About 65 to 80% for seedlings and cuttings, 50 to 70% in growth, and 40 to 50% in flowering, a bit lower toward the end. Read the answer →
- Climate What is VPD and how do I use it in a grow tent? VPD (vapour pressure deficit) combines temperature and humidity into one number that tells you how strongly the air pulls water out of th... Read the answer →
- Climate Do I need a climate controller, or is a thermo-hygrometer enough? A thermo-hygrometer is enough to start with. A controller is worth it once you want fans, humidifier and heater to react on their own. Read the answer →
