Stadler Form Karl Big Swiss Design Smart Humidifier for Rooms up to 150m² 10 Liter Water Tank WiFi App Control Low Power Use Top Fill 4 Humidity Levels Silent-Operation 2-Year Warranty + Local Support

I thought I had done well rounded research into buying a good humidifier before I made this purchase but about 15 minutes after opening the box I discovered how wrong I was. By the way, this was NOT a free humidifier or a paid review, but a purchase.First, I noticed how flimsy feeling the motorized portion of this device was. Additionally, there is a long tube like thin plastic portion that extends into the water with what appears to be a water sensor on it which determines if the unit has water or not. The water sensor looks very fragile and, frankly, cheaply made. It bothers me that in some of the paid reviews they talk about the high-quality of these plastic parts but then ,at some point, mention the build quality was not what they expected for the price. I don’t know how you can have it both ways (it’s either high quality or not) but I certainly didn’t see or feel "high quality" plastic. The mechanical plastic looks thin and potentially easily breakable.Oddly, when the water is put into the base, it covers perhaps 1/4 or more of the humidity diffusing pads. This prevents air from flowing through that portion of the pads which blocks their ability to put moisture into the air. Instead of using a pump to move the water over the pads thus using 100% of the pads ability to put moisture into the air they just 'dunk' the pads into the water and let them passively absorb water from the bottom of the pad as it sits under the water. The other 3/4’s (or less) of the pad are open to air circulation and seem to function normally.Speaking of quality, after about 15 to 20 minutes of the unit running the water sensor began to say the water tank was empty (it was actually full) and the unit would shut down. I did not take any points away or stars away for this because any sensor can fail and if the company is willing to replace it that’s good enough. However, it is a major hassle since the unit shuts itself down and will not operate when it 'thinks' it has no water. Additionally, why in the world would they even bother to put such a sensor that shuts the system down in the first place? What I mean is it would be much better to have no sensor (or a sensor that reports low water via the app) and simply let the humidifier continue to run and dry out the wet pads --- many units do just this to help preserve the life of the humidity pads and keeping them from smelling bad.System notifications / control can come or be done via the app. The app was extremely easy to set up but ease of use stopped there. When using the app to control the unit about 6 out of 10 times I would touch a function tab to change some parameter or turn on or off some function the app would within 2 to 4 seconds revert back to the previous state like I had never touched a button. So to change anything using the app often took 4 to 6 tries before the app actually accepted the change.I think a big selling point of this unit is aesthetics. For instance the suede/flannel looking surround 'finish' which is basically a circular ring of thin stretchy cloth which looks good to me. However, It’s not as 'built in' as you might expect, but more like a “seat cover” which can bunch up unless you smooth it down which is easy enough to do.I had to laugh after a few hours with this product because I couldn't deny that it looked really good but once I tried to use it, I quickly realized that looks are NOT everything.

I’ve only owned this product for three weeks And the fabric sleeve has already discolored drastically in the area where the filtered wicks are located on both the front and back of the unit. I have only used filter water in the tank and it’s odd that it looks bleached out just over the wicks. One of the major selling points of this unit for me was the aesthetics, but this is the opposite effect of what I invested a good chunk of money purchasing. Majorly dissatisfied and have reached out to the company to have this remedied and awaiting a reply.

Looks nice, has enough capacity that I only need to fill it once a day or once every 2 days depending on the humidity levels. The filling opening is ab it small for pouring from a bucket, but not a deal breaker. The app works well and it's ultra quiet. Great product.

The Karl Big Form Humidifier by Stadler, is a well-made, great looking and performing humidifier that a worthy contender for your consideration. Here are some of the things I’ve learned while owning it and things to consider before buying.I. Quality – It looks and feels to be well-made, out of good quality materials. I was expecting a little more quality for this level of cost, but it’s still better than most humidifiers and with this one, its more about the performance.II. Performance – It works great at its main job by producing a very large amount of moist air, rapidly raising the relative humidity in the room. It’s able to handle a pretty large level of the house, kind of surprising me that it could spread out that far. It’s a bonus for some to be able to control it through an app and it seems to work well the limited times I’ve used it. The appearance is very unique and it looks great in person and hides very well in plain sight. No one ever thinks it’s a humidifier.Overall, this has been a wonderful choice that looks great and performs even better, leaving me very happy with my choice. I’ll be sure to update this review, if I ever start to have problems with it.You can trust that this review is simply my honest opinion that is attempting to provide you with helpful insight that I wish I had before I picked this product. Hopefully it was helpful in your decision.

This is a well-designed whole-house humidifier, designed to be as maintenance-free as possible. Filling it with water is simple via the top reservoir lid, and the controls are responsive and clearly labeled with iconography. You will need to read the manual to get the most out of this humidifier, but the instructions are well-laid out and easy to consume. There is a mobile app (iPhone and Android) that you can download for free which allows you to monitor and control the humidifier remotely. The sides of the Karl Big look like they are covered in foam-padded material, but it is actually a very thin material that hides the sides. This humidifier works very well for up to 1,600 sqft, but it does come at a price for that convenience and efficiency.