Spider Farmer 3-in-1 6L Humidifier Indoor with Timer & Hose Cool Mist Ultrasonic Humidifiers Large Room with Temperature & Humidity Probe for Plant Mushroom Greenhouse Bedroom Grow Tent Top Fill Black
Condition: Used - Acceptable
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Size: 6L
Features
- Nice Service: We attach great importance to our customer experience. And we offer 1-year quality assurance and 3-month free exchange. You can contact our support team for a replacement whenever you find the product damaged or used, we will get back to you within 24 hours to help you resolve the issue.
- Adjustable Digital Humidity Control: This 2024 new cool mist humidifier has 1-4 levels of fog volume adjustment, and can be adjusted the humidity to 35%-95% at 5% intervals, which can effectively display humidity around with the built-in hygrometer help keep at the ideal humidity level, meet people's humidity needs.
- Extendable Hose & Sensor Probe: The double spray ports can more effectively spread the mist to a wider range. The extendable hoses can individually humidify plants with different humidity requirements and the sensor probe is used to read temperature and humidity.
- 12H Timer Humidifier for Large Room: This humidifier with hose has a timer that is timed in 1-hour increments 1 to 12 hours, the 6L indoor humidifier tank can last up to 24 hours, and 450 ml/h max mist output can cover rooms and grow tents, highly recommended for office, bedroom, home, basement.
- Memory & Water Shortage: The plant humidifier for large room will continue to run according to the previous settings on the next startup, when water shortage, no water tank or machine overturned, the machine will automatically cut off the power.
Brand: Spider Farmer
Special Feature: Adjustable Humidity Control, Auto Shut Off, Digital Display, Humidistat, Quiet, Timer, Water Level Window and Low Water Indicator See more
Color: Black
Capacity: 5 Liters
Floor Area: 400 Square Feet
Other Special Features of the Product: Adjustable Humidity Control, Auto Shut Off, Digital Display, Humidistat, Quiet, Timer, Water Level Window and Low Water Indicator
Filter Type: Pre Filter
Capacity: 5 Liters
Floor Area: 400 Square Feet
Operation Mode: Ultrasonic
Runtime: 48 hours
Room Type: Bedroom
Voltage: 110 Volts (AC)
Wattage: 27 watts
Power Source: Corded Electric
Control Method: Touch
Item Dimensions D x W x H: 8"D x 8"W x 10"H
Item Weight: 3.1 Pounds
Brand Name: Spider Farmer
Model Name: SF-Humidifier6
Model Number: SF-Humidifier6
Included Components: Detachable Wired Sensor Probe, Telescopic Tube Kit
Manufacturer: Spider Farmer
Manufacture Year: 2024
Item Type Name: PRODUCT
Color: Black
Material: Plastic
Frequently asked questions
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Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Size: 6L
Let me tell you, the Spider Farmer 3-in-1 6L Humidifier has been a serious upgrade to my grow tent. I've been through a lot of gear, and this one has quickly become a staple in my setup. All-in-One Wonder: This thing does it all—humidifies, monitors temperature, and checks humidity. It’s like having an assistant that actually knows what it’s doing. I love that I can keep an eye on everything with one piece of equipment. It’s made dialing in the perfect environment so much easier, which my plants are definitely appreciating. Big Tank, Easy Refill: The 6-liter tank means I’m not constantly running back to refill it, which is a lifesaver during those long flowering days. The top-fill design is also a huge plus—no more awkward refilling or spills. It’s quick, clean, and gets the job done. Cool Mist Magic: The cool mist is clutch for keeping things from overheating, especially when the lights are cranking. The ultrasonic mist is smooth and even, making sure every inch of my tent gets that sweet, sweet humidity. Hose it Down: The hose feature is just genius. It lets me direct the mist wherever it’s needed most, which is perfect for hitting those tricky spots or giving a little extra love to certain plants. It’s all about control, and this humidifier delivers. Quiet and Steady: It runs super quiet, too. No loud hum or buzz, just consistent, reliable performance. I can’t tell you how nice that is when you’re in the zone, focusing on your grow. Bottom line: If you’re serious about your cultivation, this is the humidifier you want in your setup. It’s reliable, efficient, and straight-up effective. My plants are thriving, and I’m pulling in better yields because of it. Highly recommend!
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Reviewed in the United States on August 17, 2024 by Tyler
Size: 6L
Not a good product, minimum use then stopped working. Will not turn on. Garbage, would have given 0 stars if o could. Waste of money
Reviewed in the United States on January 12, 2026 by Paul S
Size: 6L
The media could not be loaded. I have used several humidifiers in the past, and none of them worked all that well. To be honest, I thought that a lot of them weren't really doing anything at all. I was skeptical that this one would work either, but I was willing to give it a try and I am really glad that I did. When you turn this unit on, you KNOW that it is working with amount of vapor that it has. So much in fact that while I was testing it outside, it actually raised the humidity around the unit enough to hit the humidity target so that it turned itself off, which is nuts. It holds a ton of water and so will run for a long time, which is a problem that I have run into in the past as well with units that have smaller tanks. If you are looking for a humidifier that actually works, check this one out for sure!
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Reviewed in the United States on November 14, 2024 by James James
Size: 16L
I upgraded to this from a smaller humidifier, I will say this the mist output is amazing, i love that it shuts off on its own and the settings are easy to use, great value for the money, and you don't have to worry about checking it every few hours cause the capacity is amazing.
Reviewed in the United States on September 23, 2025 by Shaon E. "Shon" mcculloch
Size: 6L
Make no mistake, this is a great humidifier. However, the hose, in theory is a good idea. But in practice, the mist condenses back to water and runs out into the tent making big puddles. I love the idea of keeping the unit outside of the grow space. But in practice, not sure if it's feasible. Overall happy with the unit, huge capacity and tons of mist. Built in humidity control is very accurate and maintains humidity at desired set point. Downside is that I can get 2 of the cheaper units for the same price. Thought about returning it, but it works too well. Would I recommend? If you have a couple extra bucks, you bet. If you just need an inexpensive humidifier, look elsewhere.
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Reviewed in the United States on February 9, 2024 by Marshal Smethers
Size: 16L
Bought the 4.2 gallon humidifier as used in “Acceptable” condition. It arrived packed in all the original packaging, all the accessories were present, and the unit looks pretty close to brand new as far as I can tell. I’ve been running it all week with the probe attached and so far no issues… it’s working perfectly. Totally worth the value at half the usual price. I should mention that I also own the 3in1 6-liter (smaller version) purchased in 2024. The larger 4.2 gallon unit is much different and more effective. The physical output on this larger unit is much wider compared to the smaller unit, so not only does it run longer on its larger capacity reservoir but it also humidifies the room more efficiently. Plus it has wheels and can be filled from the top without having to remove the lid like the smaller version.
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Reviewed in the United States on March 16, 2026 by Plaster Disaster
Size: 6L
I bought this device after days of searching and settled on it for my farming needs particularly for the sensors and claimed functions....i could have done a better job than they did here. What is the issue? 1. Once the set humidity is reached this device goes off and never comes back on even if you can hear the components active 2. It also now seems that even when you place it back on and it shows your previous humidity setting, it does not trigger even if the set value is below. For #2, I made something to automate to put the device to come on and after a few days of monitoring, this is what i found. I had to toggle the humidity button all the way back to 50% for it to trigger, level it and goes off. Now i am here wondering what can i do with this crap. I doubt its the sensor since it reads value changes. They surely did not test this product at all!
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Reviewed in the United States on January 31, 2025 by Macaully
Size: 16L
The media could not be loaded. Tropical Plant Parents!!! This humidifier is a must have for large plant rooms, small plant rooms, or if you are like me and have over 100 plants. Works well with so many extras, like misting. Only filled once in 10 days plus I have the humidifier set to 90%. The rarer monsteras love the humidifier and the cleaning is next to nothing. Oh don’t forget it is so quiet, I find myself looking to see if it is on. The only time I actually heard it was the beep when it was time to refill! A must have!
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Reviewed in the United States on July 17, 2025 by Charisma