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Question: Just brought it and enough water in it, but the red light flashes intermittently with the green light ? Or stay in red light for minutes!!!
Document: If the eyeballs on this humidifier didn't give it away, you can tell that this guy was made with kids in mind. Very sturdy yet easy to use, with an adjustable knob to increase/decrease the intensity. Their is also an indicator light that turns from green to red when it's time to reload.
I just received this item yesterday and was quite pleased with the packaging. However, when I started using it last night, a similar problem occurred multiple times. The humidifier shuts off by itself (green light turn red) every approximately 2hrs, sometimes shorter. So far I have not figured out what the problem is.
This works great and the kids love filling it every night before bed (it's big enough to last a full 10+ hours but small enough the kids can handle it after it's full of water). Since it's a dragon I wish the air came out of his nose instead of above his eyes.
I am happy with this humidifier. I went with the dragon design...if only because it was the only animal that seemed like it should have steam coming out of its head. It's a pretty shade of red. The water capacity is perfect for making it through one overnight. It's also pretty small and unobtrusive and quiet. There is only one thing that I don't love, which is that the water as it evaporates seems to leave behind a little white dry film of minerals.
Adorable concept for a humidifier for a boys room. It was the only red humidifier I could find, so I ordered it. I was so excited when it arrived. Filled it up and turned it on to test it out. The Dragon breathes steam from its nostrils, which in turn gets moisture all over everything. Also when you turn it up to high, the water becomes crazy inside and begins to squirt out of the top soaking everything within 2 foot.
pros: cute, quiet, easy to use, cheapcons: this amazon item (Dragon shape) is an older design. probably why it's a few dollars cheaperMy first crane was a green frog from 3,4 years ago. it ran for 2 winters and a black rubber part inside (submerged in water all the time) was falling apart.I bought a new crane duck from my local store this year. I noticed the new design inside and there is no rubber part anywhere.
The 'on' light is a little bright so I have covered it. I am very pleased considering his price, excellent value for money, and he's fantastic to look at!
We had the frog one and I took it for my own room and needed to replace it for my son's room. He loves dragons so this was perfect. It works well, easy enough to clean as far as humidifiers go and a good price.
I also question why it is named Merlin when there are actual dragons to name it after--Smaug or Fafnir should be mainstream enough? The cool mist humidifier is great, but I can't recommend this model to anyone who is not  willing to sacrifice quality for cuteness.
The only issue we have had so far is that the first spot I chose for the Penguin was cushioned and didn't leave enough room underneath for the fan to draw air, so no vapor was coming out. We figured that issue out with the help of the booklet and moved it to a flat, cushion-free surface.
Answer: The red light should ONLY come on when the tank is empty or needs filled.