The Stadler Form Karl humidifiers use less power, making them more efficient to operate. These RedDot 2023 design award winners have a unique top-fill feature which allows them to be easily re-filled.

Wi-Fi enabled, you can control both the Karl and the Karl Big humidifiers via the Smartphone App, setting the desired humidity level, fan speed, and LED light level.

Evaporative Humidification

These effective humidifiers from Stadler Form use wick filters and evaporation to add soothing moisture to dry, winter air. This type of humidifier takes a bit longer than a vaporizer or mist-type, pulling dry air in, and through saturated filters, before expelling the hydrated air into the room.

Karl Humidifier: Provides moisturized air for areas up to 1,076 square feet.
Karl Big Humidifier: Provides moisturized air for areas up to 1,615 square feet.

The Karl humidifier uses two filters, while the Karl Big uses four filters. These should be changed after a whole unit operating duration of 60 days, and both units include a reminder function for this. The white LED underneath the filter change button will flash. After changing the filters, press and hold the reset button until the LED is illuminated without flashing.

Unique Design

Designed to pull dry air in from both sides of the unit using an internal fan, the Karl humidifiers feature a soft gray exterior that fits well into any décor. Easily fill by lifting off the upper part to fill the lower part with clean, cold tap water up to the maximum mark. This can be done directly from the tap, or by using a clean water can to fill it via the opening for refilling.

This design allows you to top up the water level in the humidifier while it’s operating. A very handy option, should you need to run out for an hour or two to run errands. Simply use the opening for refilling on the top of the device by pressing on the opening. Then use a watering can or bottle to fill, without having to turn it off.

Perfect Control

The controls for the Karl humidifiers are located on the inside rim of the top. These include power on/off, humidity level, fan speed, LED control, Wi-Fi function, and water & filter reminders.

Hydrostat: Set the desired humidity level at 40% RH, 50% RH, 55% RH, or for Constant Operation.
Fan Speed: Select a fan speed from 1-3, and Turbo. Level 2 is the default setting, and Turbo is a good choice when first setting up the unit for operation.
Auto Mode: In this mode, the unit automatically maintains the desired humidity level, but cannot be used when it is set to Constant Operation. Set the desired level, then press Auto, and the fan speed will be adjusted to maintain the RH setting.
LEDs: If the lights are too bright—especially at night—you can reduce the brightness by pressing the dimmer button. Select Normal (default level), Dimmed, or Lights-Out.

Additional Features

Smart Life-Smart Living App: This free app is available in the App Store and Google Play so you can control Karl from your Smartphone. Use the enclosed Wi-Fi Quick Setup Guide to connect.
Water Cube: The Stadler Form water cube maintains optimal hygiene for your humidifier, keeping it running smoothly, extending its lifespan, even working when the unit is off. Replace once a season.
Maintenance: Use fresh, cold tap water daily. Clean the interior with warm, soapy water and a soft cloth every 2 weeks after removing the filters and water cube.
Quiet Operation: Even the Karl Big only reach 60 dB at Turbo speed, normally running at a mere 27 dB.
Fill Levels: These humidifiers have both a maximum fill line and a mid-point fill-line, making it easier to keep track of the water level.
Power Cord: Both units include a power cable with adapter and a power adapter connection.

Summary

The Stadler Form Karl and Karl Big evaporative humidifiers are uniquely designed for ease of use, efficiency, and style. Featuring top-fill while running, Wi-Fi operation, built-in hydrostat, dimmable LEDs, and Auto mode.

Humidifiers