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The Coospider 3.8L reptile fogger mister features a 3.8L capacity and adjustable mist output to suit 10-40 gallon terrariums. This quiet ultrasonic humidifier delivers fine mist with dry-off protection and simple one-knob operation.
Finding a reliable way to keep your terrarium at the right humidity level can be a chore, but the Coospider 3.8L Reptile Fogger Mister offers a straightforward solution for pet owners. Designed specifically to handle the humidity needs of reptiles, amphibians, and herps, this humidifier helps maintain a proper environment inside your pet’s enclosure.
The Coospider 3.8L Reptile Fogger Mister is a reliable, ultra-quiet humidifier designed for 10 to 40-gallon single-compartment terrariums. Utilizing this reptile fogger mister ensures your pets get consistent humidity without disturbing their rest, thanks to its low-noise operation and dry-off protection.
| Pros | Cons |
|---|---|
| Large 3.8L capacity lasts up to 26 hours on medium | Does not include a built-in timer or humidity monitoring functions |
| Whisper-quiet operation (<35dB) suitable for night use | Manual operation required (no remote control included in this model) |
| Automatic dry-off protection with color-changing indicator light | Requires careful handling; cannot be moved or refilled while running |
| Simple one-button operation and front rotary knob | Recommended only for 10-40 gallon single-compartment terrariums |
This unit is ideal for beginners and pet owners managing 10 to 40-gallon single-compartment terrariums who want a simple, quiet, and reliable way to handle daily humidification without complicated programming.
No, this model does not have a built-in timer or humidity monitoring functions. It focuses entirely on humidification to help extend the service life of the fog machine.
One refill can last up to 26 hours when set to a medium misting level, or up to 10 hours when running at the maximum rate of 380ml per hour.
The unit features dry-off protection. When the tank runs out of water, the indicator light will change from green to red, and the humidifier will automatically stop working.












| Weight | 1.048 lbs |
|---|
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Out of a total of 336 products:
Alex Zeller –
5.0 out of 5 stars Great Humidifier, Great Customer Service I’ve used quite a few of these foggers for keeping various animals over the years and this model is so far my favorite. I love how easy it is to see the water level even from a distance. It’s sleek and beautiful and most importantly to me, SILENT! It ran beautifully for a year but stopped working after moving my setup to a different room of the house. It could be that water somehow found its way into the base of the unit despite my best efforts. I reached out to the seller and was sent a new unit within a couple days! My gecko and I are thankful for the great customer service and I’m sure with proper care, this new one will stand the test of time.Variation: Size: 4.2 liters
Judy B. –
4.0 out of 5 stars A good product, but needs some re- engineering A good alternative to purchasing higher-priced foggers tailored specifically to reptiles; however, there are some flaws. The cap at the top of the tank where the hose goes in does not fit properly or stay in. I had to put a couple rubber bands around the inner lip to get it to stay. Otherwise, when you put the hose in, it just falls right off. While I appreciate the troubleshooting advice from the manufacturer, the fact that they are aware of the issue with the position of the float pin or whatever it is called getting stuck or being in a tilted position is frustrating. This causes the fogger to not work and the red light to come on. When the fogger works, the result is great. It puts out variable amounts of fog based on the dial settings. As another purchaser noted, having to remove everything to fill the tank is annoying as it is not a top fill tank which the manufacturer does show accurately in the description how it is filled. It is compatible with a timer, which is how I use it, set to run for 4 hours each morning. I can tell if it worked by the water level the next morning. The need for certain tubing position with no major bends is also aggravating. Its best to have it higher than your enclosure, so the hose can just go straight down with no bends, which is how I am fixing to change mine to as it has not been working consistently either due to the pin issue or hose positioning. Overall, for the price, compared to the other pricier foggers, it is “okay” but I would not purchase again due to inconsistently working or having to troubleshoot or Maguyver it.Variation: Size: 3.8 liters
Melissa Lindborg –
5.0 out of 5 stars Iguana loves it! Been using is 24/7 for over 2 years! I purchased this fogger for my 8 foot large iguana terrarium in October 2022. The hose is very long, I have it sitting on the bottom and the hose reaches all the way up to fog directly on my iguanas perch where she hangs out. It’s nice that I can add moisture exactly where I want to. The fog cools her warm spot a bit making it the perfect temperature. She loves it. It’s now January 2025, this sucker is still going. Sure, it makes a humming noise here and there. I gotta bang on it a little bit to get it to stop making the noise. And it stops making the noise. I have run it 24/7 for 2 years and 3 months. And it’s still going. Fogs perfectly. This thing is a champ. I absolutely feel like I’ve gotten my moneys worth. When it finally, if ever, dies, I will repurchase again!Variation: Size: 3.8 liters
Gene –
5.0 out of 5 stars Great Product This is by far the best humidifier I’ve ever owned. I was spending $50+ every year on humidifiers only to have them quit after 1 winter of use.This baby puts out the mist, it works flawlessly, the reservoir last a long time even on highest setting, safety features work. I have it in a 15’×22′ sun room full of plants to keep moisture in the air. The plants love it, it keeps them healthy over the winter months. Would definitely recommend this product to everyone who needs a humidifier weather it be for plants or animals.Variation: Size: 3.8 liters
Scott –
5.0 out of 5 stars Very fine mist Fine fog is wispy and floats on the air currents. Its mesmerizing to watch the mist in the air current wafting in and out of my mono tub. It keeps the humidity inside my mushroom tent at the perfect level. Have not used in full service long enough to determine actual runtime between refills, but running off and on for temp and flow testing over the past four days has not used more than about a cup of water. So far quite pleased with the performance.Variation: Size: 3.8 liters
Amazon Customer –
5.0 out of 5 stars Great value for the price We use this for our dart frogs, attached to a timer to turn it on and off. It’s worked very well with very few issues. It doesn’t have a super great control (if you turn it too far down it doesn’t really mist, and if you turn it all the way up you can’t see anything in the tank), but using the timer has eliminated that issue for us.Variation: Size: 3.8 liters