Ultrasound Humidifier 12 Membranes + Float – Massive Mist for Large Grow Rooms

The Ultrasound Humidifier 12 Membranes + Float is a high-performance device designed to generate a massive amount of cold mist, instantly optimizing the humidity levels in large indoor cultivations. Unlike small domestic appliances, this "fog machine" is built to work hard, ensuring your plants never suffer from water stress due to dry environmental conditions.

Why is humidity control crucial for your crop?

Are you noticing that your plants are growing slowly, with curled leaves, or that the temperature in your grow room is skyrocketing while the humidity drops to Saharan levels? Maintaining a stable environment in large spaces or under powerful lights is one of the hardest challenges for a grower.

If you don't fix this, your plants will close their stomata to save water, stopping photosynthesis and stalling their development. Even worse, dry and hot air is the perfect breeding ground for pests like the dreaded red spider mite. Relying on wet towels or small 1-liter humidifiers is a waste of time and effort that puts your harvest at risk.

The solution is to bring out the heavy artillery. With this 12-membrane ultrasonic humidifier, you can evaporate up to 6 liters of water per hour. It connects to any large reservoir you have, allowing you to automate humidity management efficiently and professionally.

Turn your grow room into a tropical paradise

Using this device changes the game completely. By maintaining high relative humidity (RH) during the vegetative phase (around 60-70%), you allow the plants to develop lush foliage and robust stems. This device is specifically designed to be placed inside a large tank or water butt. Thanks to its included float, the unit stays at the perfect depth to maximize mist production without you having to constantly adjust it.

It is the perfect complement to your Climate Control system. While your extractors remove stale air, this humidifier replenishes moisture instantly, cooling the environment by several degrees in the process. It's ideal for rooms with many lights where heat is an issue.

How to use the 12-membrane humidifier correctly

To get the best performance and durability out of this beast, follow these simple steps:

1. Prepare the reservoir: Use a large tank, bucket, or tub (at least 20-30 liters is recommended so you don't have to refill it daily).
2. Water quality is key: Fill the tank with distilled water, osmosis water, or rainwater. Never use tap water, as the lime will calcify the membranes and ruin the device in weeks.
3. Place the float: Insert the humidifier into the float ring. This ensures the ceramic discs are always submerged at the exact depth needed to create the "fog" effect.
4. Connection: Place the unit in the water and plug it in. You will see an immediate explosion of mist.
5. Automation: Connect the plug to a Humidity controller so it only turns on when the humidity drops below your set point.
6. Fan dispersion: Place a fan nearby to blow the mist and distribute it evenly throughout the room.

Key advantages and benefits

• 12 Ceramic Membranes: Features 12 independent 20mm discs that generate a high-density mist, allowing you to cover large areas (up to 20-30 m²) effortlessly.
• 6000ml/h Capacity: Evaporates 6 liters per hour, which means it raises humidity faster than any standard humidifier, reducing plant stress immediately.
• Included Float: Keeps the unit at the optimal water level, preventing it from sinking or running dry, which protects the motor and ensures continuous operation.
• Cooling Effect: The ultra-fine mist evaporates quickly, absorbing heat from the air and helping to lower the temperature in your grow tent or room.
• Replaceable Parts: Unlike cheap units, if a membrane wears out, you can replace it, extending the lifespan of your investment significantly.

Care and maintenance

The number one enemy of this device is limescale. We cannot stress this enough: use water with low EC (osmosis or distilled). If you use tap water, mineral salts will build up on the ceramic discs, reducing their power until they stop working. This damage is not covered by the warranty.

Clean the membranes gently every 2-3 weeks with a soft cloth or brush to remove any biofilm or residue. Do not use aggressive chemicals; a little vinegar and water usually does the trick for cleaning the tank.

Frequently Asked Questions

How much water does it consume?

At full power, it consumes approximately 6 liters of water per hour (6000ml/h). We recommend using a tank of at least 50-100 liters if you want it to run autonomously for several days.

Can I use it in a small grow tent?

It is very powerful for a small tent (e.g., 1x1m) unless you control it with a humidistat that turns it off quickly. It is designed for rooms or large Grow tents (2.40m x 1.20m and up).

Does it come with the splash guard?

This model comes with the float, which is essential. It does not typically include a splash guard dome, so it's best used inside a deep tank or tub where some splashing won't be an issue.

Are the membranes replaceable?

Yes, the 20mm ceramic discs are replaceable. If you notice mist production dropping after months of intense use, you can change them easily.

Personal Experience of Pevgrow’s CEO (Alan)

I remember the first time I set up a room with 20 lights; the heat was eating up all the humidity, and the plants looked sad no matter how much I watered them. I put one of these 12-membrane units in a 100-liter trash can filled with osmosis water, and in 15 minutes the room looked like a rainforest. The change in the plants' turgidity was brutal.

My advice: don't be stingy with the water quality. I killed my first one in a month by using tap water because I was lazy. Since I switched to osmosis water, the membranes last me for several crops. If you have a serious setup, this is the lung your room needs.