Review on 🌬️ Smartmi 4L Top Fill Air Humidifier - Cool Evaporative Humidifiers for Bedroom Home Large Room Baby Room, Easy to Clean, Whisper Quiet, Smart APP Control, Auto Shut-off by Brian Nelson

I don't understand the low ratings for the inefficiency of this humidifier. My guess is that the rooms people put it in are open to the rest of the house. You can't put it in a bedroom with the door wide open and then expect the humidity in the bedroom to be much higher than the rest of the house. Moisture escapes! In order for excess moisture not to escape from the room faster than the humidifier can generate it, you need to close the door, or at least close it "most of the time”. If you want to keep the door wide open, you'll need a much more powerful humidifier than what's rated for a room. However, I only had it one day, so this review is preliminary. But the humidifier runs all the time and gradually increases the humidity in the room by about 10% (so far) and it just keeps getting better. And that with a room door that is about 25 cm ajar. If I close the door all the way, I undoubtedly get better results. But I don't like keeping the door closed all the time. I would first like to see how high the humidity can be with the door ajar. I just need 5% or so. (I have a whole house humidifier downstairs, which helps. But I want the humidity in this room to be higher than the other humidifier can handle due to musical instruments.) I appreciate an app that lets me control the humidifier , very. remotely and see the temperature, humidity and water level. YES SIR. Humidity levels are about 10% too high. You should expect this as the sensor is on the device itself and not throughout the room! The humidity is naturally higher where the humidifier is located. If you need accurate readings for a room, buy a separate hygrometer and place it elsewhere in the room. I'm not exactly sure what the "Auto" fan speed setting does. That said, I don't know what humidity it will lead to. And I'm not ready to experiment with that yet. However, one of the things the "automation" control (which the app offers) allows you to automatically control the humidifier's fan speed based on humidity level (or temperature). do, unless you don't know what humidity level it's targeting. With the "Automatic" control you can set the desired humidity. For example. You can set the humidifier to automatically increase the fan speed when the humidity is below the level you set, thereby increasing the humidity. And you can reduce the fan speed when the humidity gets higher than you want, which will gradually lower the humidity. As another reviewer pointed out, humidity isn't measured when the humidifier is off, so you can't turn it on and off based on humidity (only off). But toggling the fan speed should work well for indoor humidity control. A NOTICE. Unfortunately, you can only select humidity levels with a 10% difference (I would prefer 5%). So your "too high" humidity should be at least 10% higher than your "too low" humidity. But this feature is apparently still experimental. So maybe the app will be updated in the future to provide a more accurate resolution. AT LAST. Humidity varies with room temperature. Every time the oven is turned on, the humidity in the air decreases. When the stove is turned off, the humidity begins to rise again. This is how relative humidity works. The higher the temperature, the more water vapor is needed in the air to have the same relative humidity. And the humidifier cannot generate water vapor fast enough to keep up with the rapidly rising temperature caused by the stove. And even if it were possible, when the stove is off, the relative humidity in your room will still rise when the room cools down again. In any case, your humidity will rise and fall by an average value, depending on the temperature in the room. ALSO. Yes, the humidifier blows "cold" air. Again, this is how it works. For water to vaporize, it takes thermal energy to convert it from a liquid to a gas. He gets this heat energy from the air! This way, the air leaving the humidifier is always colder than the rest of the room. Your only other choice is a heating element in your humidifier that will heat or boil the water. That way you could raise the humidity faster and the air coming out wouldn't be as cold, but heating or boiling the water also poses safety issues (among other things). As mentioned, I've only had the humidifier one day, so I don't know if I'll run into any problems with the controller failing or other glitches. If anything breaks or becomes unreliable I will update this review.