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29 products

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RAM Ultrasonic Humidifier - 5L Tank - London GrowRAM Ultrasonic Humidifier - 5L Tank - London Grow
RAM Ultrasonic Humidifier - 13L Tank - London GrowRAM Ultrasonic Humidifier - 13L Tank - London Grow
RAM - Wall Humidifier - 1.6L/hr - London GrowRAM - Wall Humidifier - 1.6L/hr - London Grow
GAS SonicAir Pro Humidifier - 6.5L p/hr - London GrowGAS SonicAir Pro Humidifier - 6.5L p/hr - London Grow
GAS GAS SonicAir Pro Humidifier - 6.5L p/hr
Sale price£375
Reviews
Only few units left, more on the way
Dry Bag Hanging Dehumidifier - London Grow
N/A Dry Bag Hanging Dehumidifier
Sale price£4.50
Reviews
Coming Soon
Dry Pot Dehumidifier - London Grow
N/A Dry Pot Dehumidifier
Sale price£5.95
Reviews
Coming Soon
New!
RAM - 12L Dehumidifier 12L/Day - London GrowRAM - 12L Dehumidifier 12L/Day - London Grow
RAM RAM - 12L Dehumidifier 12L/Day
Sale price£152.95
Reviews
In stock
Quest - 155 Overhead Dehumidifier - London GrowQuest - 155 Overhead Dehumidifier - London Grow
Quest - 155 Merv Filter - London Grow
Quest - 155 Hanging Kit - London Grow
Quest - 155 Dehumidifier Castor Kit - London Grow
Faran Humidifiers - Digital Humidistat HR-DHTC - London Grow
Faran Humidifers - Analogue Humidistat HR-EHSA - London Grow
Faran Humidifiers - HR-50 Humidfier - London GrowFaran Humidifiers - HR-50 Humidfier - London Grow
Faran Humidifers Faran Humidifiers - HR-50 Humidfier
Sale price£414.95
Reviews
Only one unit left, more on the way
Faran Humidifers - HR-15 Humidfier - London GrowFaran Humidifers - HR-15 Humidfier - London Grow
Mist Maker Ceramic Discs - London Grow
N/A Mist Maker Ceramic Discs
Sale priceFrom £8.95
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Float for Mist Maker - London Grow
Mist Maker Float for Mist Maker
Sale priceFrom £13.95
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Mist Maker - London Grow
Mist Maker Mist Maker
Sale priceFrom £59.95
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In stock
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Quest - 70 Merv Filter - London Grow
Quest Quest - 70 Merv Filter
Sale price£25
Reviews
In stock
Quest - 70 Overhead Dehumidifier - London GrowQuest - 70 Overhead Dehumidifier - London Grow
Quest - 70 Pre Filter - London Grow
Quest Quest - 70 Pre Filter
Sale price£12
Reviews
In stock
Quest - DEH 3000R Controller - London Grow
Quest Quest - DEH 3000R Controller
Sale price£255.95
Reviews
In stock
Quest - 70 Hanging Kit - London Grow
Quest Quest - 70 Hanging Kit
Sale price£75
Reviews
In stock
GAS - Humidity controller for SonicAir Pro - London Grow
Save £19.05
GAS - Intelligent Humidity Controller - London Grow
GAS GAS - Intelligent Humidity Controller
Sale price£170.95 Regular price£190
Reviews
In stock
TechGrow - Humi Dual Pro - London Grow
TechGrow TechGrow - Humi Dual Pro
Sale price£199
Reviews
Only few units left, more on the way
New!
GAS SonicAir Humidifier - 23L - London Grow
New!
SonicAir 23L Humidifier Float Kit - London Grow
One of the secrets to achieving optimum plant development is maintaining a balanced grow room humidity. Amateur growers tend to overlook humidity when they're managing their grow room's environment and purely focus on controlling the temperature levels. It's a mistake because humidity impacts your plants' growth and the quality of your crops. For example, if the air in your grow room becomes too dry, your plants will lose more water than they can regain through their root system.

During the vegetative phase, you must maintain a relative humidity level between 50% and 70%. When you keep the humidity within this range, your crops will thrive. Growers worldwide use humidifiers, dehumidifiers, and humidity controllers available at London Grow to ensure an optimum grow room environment. We stock products from top-quality manufacturers such as GAS, RAM, TechGrow and Quest to help you maintain the right humidity rates and ensure healthy crop growth.