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Comment: Item is used and in good condition, it has a minor imperfection, it is missing the knob (please see pictures). It works great and really clean. It will ship repackaged in original box.
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Optimus U-33015 1-Gallon Tank Capacity Cool Mist Evaporative Humidifier

3.2 out of 5 stars 67 customer reviews

Price: $49.00 & FREE Shipping
Only 13 left in stock.
Ships from and sold by muzzha!.
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  • 1.0 gallon tank capacity
  • 2 gallon moisture output in 24 hours
  • Cool mist humidifier designed for medium-size rooms
  • Draws air through a wet wick creating a fine mist and no floor wetness
  • Easy to clean carry and fill. Two moisture output settings
8 new from $44.26 1 used from $35.48

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$49.00 & FREE Shipping Only 13 left in stock. Ships from and sold by muzzha!.

Frequently Bought Together

  • Optimus U-33015 1-Gallon Tank Capacity Cool Mist Evaporative Humidifier
  • +
  • Optimus U-30011 Humidifier Replacement Wick Filter for U-33015, 2-Pack
Total price: $64.22
Buy the selected items together

Product Description

The U-33015 from Optimus is a 2.0 gallon cool mist evaporative humidifier. Features include two moisture output settings, easy to clean carry and fill, low electric power consumption, low noise, and replaceable wick.Humidifier outputs 2.0 gallon per 24 hrs.

Product Information

Product Dimensions 10.5 x 14.7 x 13.3 inches
Item Weight 7.2 pounds
Shipping Weight 7.2 pounds (View shipping rates and policies)
Manufacturer Optimus
ASIN B003H4QJE2
Shipping Advisory This item must be shipped separately from other items in your order. Additional shipping charges will not apply.
Item model number U-33015
Customer Reviews
3.2 out of 5 stars 67 customer reviews

3.2 out of 5 stars
Best Sellers Rank #928,135 in Home and Kitchen (See Top 100 in Home and Kitchen)
#655 in Home & Kitchen > Heating, Cooling & Air Quality > Humidifiers & Vaporizers > Single Room Humidifiers

Warranty & Support

Product Warranty: For warranty information about this product, please click here

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Customer Reviews

Top Customer Reviews

Verified Purchase
After all of the problems I read about with other designs, I love the simplicity of this one. There are no pumps, heating coils, shut off valves, or electronics to worry about. It is just a small fan pulling air across a wicking element. It needs to be refilled about once a day, but if you forget it just becomes a fan not a fire hazard. The fan and tank simply lift off, making cleaning easy.

Best of all, instead of heating the air it actually cools it slightly (it is basically a small swamp cooler). And because it passively humidifies it is self regulating, it will evaporate less as humidity increases. There will never be a wet area around it.

The only reason it doesn't earn 5 stars is price, call it 4 1/2. It is a small fan and 3 pieces of plastic, hardly justifying the $50 cost. The elements are cleanable, but do wear out and are $15.
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I just bought this 2 gallon Optimus after my last slant fin humidifyer had issues, and I was not real successful looking for the parts. SO far I love the quietness and no light.

I max it out in the bedroom at night, so I have to fill daily, but it is light and easy - rather pleasant! Make the bed, refill the Optimus. I'm on here now to buy the little filter sleeves, which I understand can be washed out but do wear out. I don't want to be caught without. I will mention my oversized Bionair which I use for the primary house is very noisy (IF you put it on high which i do unless it is time to relax) and the Bionaire also takes a long time to fill the two canisters (but lasts for weeks). I would not want it in the bedroom due to the noise and ugly dark grey - this 2 gallon Optimus is perfect.
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Verified Purchase
Bought this item a month or so ago, and I like it well enough. It is a simple design that uses a replaceable "wicking" element Optimus U-30011 Humidifier Replacement Wick Filter for U-33015, 2-Pack underneath the fan to provide a large surface area to evaporate the water. Be aware that you will have to replace the wick every so often. Our water is quite hard, so we buy distilled water to use in the humidifier to extend the life of the wick, otherwise mineral deposits can build up on the wick rather quickly and it is not recommended to try and clean and re-use the wicks. The unit is not silent, but is actually very pleasantly quiet, and be aware that it "burbles" as it releases water from the tank into the unit every so often...I do not find it disturbing and can sleep with it near the bed. On "hi" fan speed it will go through a gallon of water (one tank full) in about 24 hours in our room...this of course will depend on your relative humidity (we live in Arizona, near Phoenix...so quite dry here...) One dislike about the unit is that you fill the tank from the bottom and the handle on top is not flat...thus to fill the tank you cannot set it on a flat surface and have it stay upright. I have kneel on the floor and balance the tank between my knees to pour water into the tank. Also, when placing the tank back into the unit, it fits snugly and it does not always slide right in...you have to finaggle it into place...which can be annoying but not difficult.
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Verified Purchase
After my previous humidifier broke I bought this one. So far it's great. It's easy to take apart and clean, easy to fill, pretty quiet as well. Even on high a full tank lasts 24 hours or more. My allergies tend to lead to sinus problems and this humidifier certainly helps me sleep better at night. An indicator light might be useful. Plus, I'm not sure if it automatically shuts off when empty. But all in all it's a good product. Would buy it again.

Update 09.15.2013: Just a few weeks ago I bought new filters like I usually do but something didn't seem to be working like it should. The fan was on but it didn't seem like any mist was being generated and the water in the tank never got any lower, even after a couple of days of almost continuous use. I thought, "Great, it's broken," but as it turns out I bought the wrong filters. They were larger filters for a different Optimus unit so I'm guessing that's why it wasn't working properly. I bought the correct filters and all is well now! It still lasts on high for longer than 24 hours. The fan is quiet but the unit makes a gurgling sound when the water gets pushed so if you're a light sleeper you might want to consider that. Sometimes I have trouble unscrewing the lid to refill the tank because moisture makes it stick. I like that the tray is dishwasher safe and the tank is easy to clean. Still quite pleased with this one!

Update 10.22.2014: Ok the cap is getting quite annoying. It sticks quite a bit and is nearly impossible to open (for me, anyway, but I'm hardly a weakling). Resorted to filling the tank by depressing the spring and slowly letting water fill in.
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Verified Purchase
This humidifier is like a mini-evaporative cooler (i.e. fan pulls air through a wet, replaceable wick).

It is quiet - even on high [fan] speed. For example, it is quieter than a typical computer fan.

So far, so good - the only negative that I can see is that it periodically pulls a small amount of air into the tank. The small amount of air rises to the top in the form of bubbles, which make a little noise. It does not bother me, but for some - it might.
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