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Stadler Form Eva Humidifier 205054 Manual

Stadler Form Eva Humidifier 205054 Manual Image

Operating instructions


Soak cartridge

Stadler Form Eva Humidifier -Soak cartridge

Remote Sensor™ Position and activate

Stadler Form Eva Humidifier -Remote Sensor


watch cleaning video:

EN ADAPTIVE HUMIDITY™ technology automatically adapts the humidification output in Auto Mode in order to reach and keep the desired humidity level quietly and efficiently

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For frequently asked questions go to: www.stadlerform.com/Eva/support
Download instruction manual: www.stadlerform.com/Eva/manual
Watch the video of Eva: www.stadlerform.com/Eva/video

Stadler Form Aktiengesellschaft, Chamerstrasse 174, 6300 Zug, Switzerland
Phone +41 41 720 48 48, Fax +41 41 720 48 44, www.stadlerform.com/contact

Congratulations! You have just acquired the exceptional EVA air humidifier. It will give you great pleasure and improve the indoor air for you.
As with all domestic electrical appliances, particular care is also needed with this model in order to avoid injury, fire damage or damage to the appliance. Please study these operating instructions carefully before using this appliance for the first time and follow the safety advice on the appliance itself.

Description of the appliance

The appliance consists of the following main components:

  1. Mains cable for power supply
  2. Remote Sensor™ humidity sensor with remote control
  3. Stand for Remote Sensor™
  4. Battery compartment of Remote Sensor™ (Type AAA)
  5. Position of the humidity sensor
  6. Water tank with carrying handle
  7. Water tank lid with anticalc cartridge
  8. Anticalc cartridge
  9. Water tray
  10. On/off button
  11. Button for the selection of the desired humidity (hygrostat: 30 – 75 % and continuous operation “CO“)
  12. Button for the selection of the humidification output level 1 – 5
  13. Button for warm mode (water pre-heating)
  14. Button for auto mode
  15. Display with the indication for the current and desired (blinking) humidity
  16. Water level indicator
  17. Heating plate for water pre-heating
  18. Cover for the heating plate
  19. Ultrasonic membrane
  20. Fragrance container
  21. Button for night mode (LEDs normal, dimmed or off) and cleaning mode (press for at least 5 seconds)
  22. The symbol for a failed connection between Remote Sensor™ and humidifier
  23. Mist chamber
  24. Silver Cube™
  25. Cleaning brush
  26. Air outlet opening (Caution: no water may enter this opening!)
  27. Mist outlet

Important Safety Instructions

Please read through the operating instructions carefully before you use the appliance for the first time and keep them safely for later reference; if necessary pass them on to the next owner.

  • Stadler Form refuses all liability for loss or damage which arises as a result of failure to follow these operating instructions.
  • The appliance is only to be used in the home for the purposes described in these instructions. Unauthorized use and technical modifications to the appliance can lead to danger to life and health.
  • This appliance can be used by children aged 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning the use of the appliance in a safe way and understand the hazards involved. Children shall not play with the appliance. Cleaning and user maintenance shall not be made by children without supervision.
  • Only connect the cable to alternating current. Observe the voltage information given on the appliance.
  • Do not use damaged extension cords.
  • Do not run the power cord over sharp edges and make sure that it does not get trapped.
  • Do not pull the plug from the socket with wet hands or by holding on to the power cord.
  • Do not use the appliance in the immediate vicinity of a bathtub, a shower, or a swimming pool (observe a minimum distance of 3 m). Place the appliance such that a person in the bathtub cannot touch the appliance.
  • Do not place the appliance near a heat source. Do not subject the power cord to direct heat (such as a heated hotplate, open flames, hot iron sole plates, or heaters for example). Protect power cords from oil.
  • See to it that the appliance is properly positioned to ensure high stability during its operation and make sure that no one can trip over the power cord.
  • The appliance is not splash-proof.
  • For indoor use only.
  • Do not store the appliance outdoors.
  • Store the appliance in a dry place inaccessible to children (pack the appliance).
  • If the power cord is damaged, it must be replaced by the manufacturer or a repair shop authorized by the manufacturer or by similarly qualified persons in order to avoid a hazard.
  • Prior to any maintenance, cleaning, and after each use, switch off the appliance and unplug the mains cable from the socket.
  • Prior to cleaning the interior of the appliance, make sure the appliance has been off for at least 15 minutes!
  • When the pre-heating is turned on, the water inside the appliance is heated: the water in the water tray (9) and the heating plate (17) becomes hot. Avoid touching the water and the heating plate!
  • Place the appliance out of reach of children, as the water inside the appliance is heated up to 50 °C and the heating plate reaches hot temperatures up to 75 °C.

Before setup: Anticalc cartridge and water hardness
The anti-calc cartridge reduces the limescale in the water and the undesirable emission of limescale particles into the surroundings. Effective for one to three months, depending on water hardness (see table).

Important: Soak the anti-calc cartridge in a water bath for 24 hours before the first use (not in the water tank!). The resin has to absorb water to reach high performance. The period of time that the cartridge is effective depends on the hardness of the water. This can be tested using the testing strips provided (testing strip stuck to the Quick Setup Guide). 1. Dip the testing strips into the water for a second.  2. After around one minute the results can be seen on the test strip. Some of the green fields change colour into pink. The water hardness is shown by how many boxes turn pink. Example: If three are pink, then the water hardness is >14 °dH.

Number of pink boxes Water hardness Degree of hardness (°dH) Cartridge will last for (with 4 liter/day)
Days Liter
0/1 Soft From 4 °dH 90 days approx. 360 L
2 Moderately hard From 7 °dH 45 days approx. 180 L
3 Hard From 14 °dH 30 days approx. 120L
4 Very hard From 21 °dH 15 days approx.  60 L

With a water hardness above 21 °dH, we can no longer recommend the use of an ultrasonic humidifier. We recommend that you use an evaporative humidifier to increase the humidity in your house (e.g. an Oskar humidifier made by Stadler Form: www.stadlerform.com/Oskar).

Note: Do not operate Eva with decalcified water out of a decalcification system that uses the principle of an ion exchanger (salt is added to the water). The salt contained in the water may lead to white dust accumulation around the appliance. To minimize this risk, you can operate Eva using a mix of distilled and tap water. The mixing ratio should be 50:50. Attention: Please do not operate the unit using pure distilled water as the water level indicator will not work correctly. However, Eva may be operated from a drinking water filter system (e.g. Brita). Should you be unsure about the quality or composition of the water in your area, contact the caretaker or your drinking water provider.

Setting up / operation

  1. Put Eva in the desired location on a flat surface. The mist reaches a height of up to 1.4 m thanks to the high-performance humidification (output level 5, warm mode on). This makes it possible to place Eva directly on the floor. Connect the power cord (1) to a suitable socket.
  2. Take the Remote Sensor TM (2), the stand (3) and the two batteries out of the packaging. Open the battery compartment (4) on the underside of the Remote Sensor TM (2) by turning the lid anticlockwise. Insert the two batteries into the battery compartment (4), as shown on page 4, and close the lid again. Now place the Remote Sensor TM (2) on the stand (3).
  3. On the one hand, the Remote Sensor TM (2) is a humidity sensor and guarantees precise humidification by its external position. On the other hand, the Remote Sensor TM (2) also serves as a remote control. Position the humidity sensor Remote Sensor TM (2) in the center of the room on a table or a sideboard with an optimal distance from Eva between 3 – 5 m. The Remote Sensor TM should be positioned centrally in the room so that the room air can flow past the sensor (5) as freely as possible. If this is not possible, we recommend positioning the Remote Sensor TM with a minimum distance of 30 cm from the wall and a minimum distance of 2 m from windows and ventilation openings.
  4. Remove the water tank (6) by holding it by the handle and pulling it up. Screw off the water tank lid (7) and fill the water tank with clean, cold tap water up to the maximum mark. Make sure that the anti-calc cartridge (8) has been soaked in water for 24 hours prior (see “Before setup“). Finally, screw the lid (7) back on the water tank (6). Then place the water tank (6) in the unit. The water tray (9) will now slowly fill from the water tank. Important: please do not move the appliance when it is filled with water. The water could run into the electronics.
  5. Press the on/off button (10) to switch Eva on. The current relative humidity in % is shown on the display (15). If the water level indicator light (16) is red, there is too little water in the unit. The humidification output level is pre-set to level 3 and the desired humidity at 45 %.
  6. Activate the Remote Sensor TM (2) by pressing the “Hygrostat” button (11a). The humidity sensor automatically sends information about the measured relative humidity several times per minute to the unit, which shows it on the display (15). The measurement can also be activated by pressing any button on the Remote Sensor TM (2) (aside from the on/off button (10)).
  7. The desired humidity can be changed by pressing the “Hygrostat” button (11) several times (30 – 75 % and continuous operation “CO”). The symbol on the display (15) blinks during input. After a few seconds without input, the selected value is saved. The symbol changes to the current measured humidity. Info: Once the desired air humidity is reached, the appliance stops and the display blinks. Should the measured current air humidity fall below the set value, the appliance begins to humidify again.
  8. The humidification performance can be changed by pressing the “Output” button (12) several times (levels 1 – 5). The level is indicated on the display (15) by horizontal bars (e.g. 1 bar = level 1).
  9. By pressing the “Warm” button (13), the warm mode, and with it the water pre-heating, is turned on. Now the LED on the “Warm” button on the unit is on. The heating plate (17) warms the water before it is turned to a mist by the ultrasonic membrane (19). The warm mode creates a pleasantly warm mist plus increases the humidification performance.
  10. By pressing the “Auto” button (14), the auto mode, and with it, the Adaptive Humidity TM Technology, is activated. Now the LED on the “Auto” button on the unit is on. In auto mode, the unit adapts the humidification output level automatically in order to reach and maintain the desired humidity of 45 % quietly and in an energy-efficient way. The lower the current humidity is, the higher the humidification output level will automatically be set (under 33 % = level 4, from 34 % – 37 % = level 3, from 38 % – 41 % = level 2, from 42 % – 45 % = level 1). You can change the desired humidity in auto mode by pressing the “Hygrostat” button (11) several times while auto mode is active (the LED on the “Auto” button on the unit is on). The humidification output level (12) cannot be altered manually in auto mode. As soon as the “Output” button (12) is pressed to change the humidification output level, the auto mode is deactivated.
  11. You can use Eva to disperse fragrances in the room. Be extremely sparing with fragrances because an excessive dosage can result in the malfunctioning of, and damage to, the appliance. In order to use fragrances, briefly press and release the fragrance container (20) and pull it out of the appliance. Let the fragrance drip directly onto the cotton pad in the fragrance container (20). Add a maximum of 1 – 2 drops of fragrance into the fragrance container! Push the container back again and press and release it to lock it. Tip: in order to change the fragrance, remove the cotton pad and clean the container with soap. Now you may insert a new cotton pad (commercially available) and add drops of the desired fragrance.
  12. If the water level indicator (16) changes to red, the water must be refilled. Remove the water tank (6) and fill it with clean, cold tap water up to the maximum mark. After replacing the water tank, the appliance automatically resumes operation after a few seconds. The water tank can also be refilled during operation.
  13. If you find the lamps too bright (in a bedroom, for example), you may reduce the light intensity by pressing the night mode key (21):
    • Normal mode (default mode)
    • Dimmed mode (push once)
    • Lights-out mode (push twice)
    • By pushing the dimmer button once more, you can go back into normal mode.
    If there is no water in the appliance, the red water level symbol (16) lights up in all modes. The red light cannot be dimmed.
  14. If two dots are shown (22) on the display (15), Eva cannot establish a radio connection to the Remote Sensor TM (2). Eva still functions thanks to a humidity sensor within the appliance. Press any button on the Remote Sensor TM (2) to activate it. Make sure that the Remote Sensor TM (2) is within a 10 m radius of Eva. Walls, doors, and floors between Eva and the Remote Sensor TM (2) can disrupt the radio connection. The Remote Sensor TM (2) should be optimally positioned at a distance between 3 – 5 m from Eva and on an elevated surface in the middle of the room (see «Setup/operation» No. 3). The two dots on the display (22) could also indicate that the batteries in the Remote Sensor TM (2) need replacing (see «Setup/operation» No. 2).

Note: Should you see droplets (or other signs of dampness) on or around the unit, this condensed water is from the humidifier. This means that the air can no longer absorb the moisture from the humidifier. Please activate the auto mode with the desired humidity of 45 %. Water droplets should then stop forming.

Prior to any maintenance, cleaning and after each use, switch off the appliance and unplug the mains cable (1) from the socket.
Attention: Never submerge the appliance in water (danger of short-circuit). If pre-heating is turned on (the warm mode LED is on (13)), the water inside the appliance is heated: the water in the water tray (9) and the heating plate (17) becomes hot. Avoid touching the water and the heating plate!

  • For external cleaning, rub with a damp cloth and then dry thoroughly.
  • Run the cleaning mode at least once per month. The appliance must be off for at least 15 minutes prior to internal cleaning! Then remove the water tank (6), the mist chamber (23), the cover (18), the Silver Cube (24), and the fragrance container (20). Fill a cup with 200 ml of tap water mixed with descaling agent (mix according to the manufacturer’s instructions). Pour the liquid carefully into the water tray (9) by holding the cup directly over the water tray (see page 5). Do not pour the liquid into the water tray from high above the tray! Be sure that no liquid enters the air outlet opening (26). This will damage the appliance and will void any claim to the warranty.
  • To start the cleaning mode, the mains cable must be connected to a socket. Press and hold the night mode button (21) on the underside of the right corner for 5 seconds to activate the cleaning mode. Now the water level symbol (16) on the appliance will blink red. The cleaning mode runs for around 5 minutes and automatically turns off afterward (the water level symbol stops blinking).
  • Check in the water tray (9) if the limescale on the ultrasonic membrane (19) and the heating plate (17) has dissolved. Attention: the water and the heating plate are hot, risk of scalding!
  • If limescale residue remains, the ultrasonic membrane (19) and the heating plate (17) can be cleaned with the help of the cleaning brush (25) (front- and backside). Do not try to scrape them with a hard object.
  • For stubborn limescale, we recommend descaling the appliance by running the cleaning mode (21) several times in a row. Leave the descaling agent in the water tray for a maximum of 20 minutes and pour it out afterwards as described below.
  • Important: Pour the descaling agent out over the left front corner of the appliance (see the arrow on the appliance). No water may enter the air outlet opening (26). This will damage the appliance and will void any claim to the warranty.
  • To rinse, now fill the cup with 200 ml of tap water and carefully pour the liquid into the water tray (9) by holding the cup directly over the water tray (see page 5). Do not pour the liquid into the water tray from high above the tray! Pour the water out over the left front corner of the appliance. Repeat the process until there is no more descaling agent in the water tray (9). Place the Silver Cube (24), cover (18), mist chamber (23), water tank (6) and fragrance container (20) back into the appliance. If the water tank is not sitting right, check if the upper part of the mist chamber (23) is properly mounted.
  • Clean the water tank (6) thoroughly every two weeks with a soft brush or sponge and warm water. Use diluted descaling agent (mix according to the manufacturer’s instructions) for lime deposits. Rinse the water tank afterwards with clean, cold tap water thoroughly.

Replacement of the anti-calc cartridge

  • Please find the recommended replacement interval in the table (see “Before setup”).
  • Tip: the efficiency of the cartridge (8) can be inspected with a simple test. Hold a small mirror in the mist (27) for a few seconds. If white deposits (calcium carbonate) appear on the mirror, then the cartridge needs changing.
  • The anticalc cartridge is located on the inner side of the tank lid (7). First, screw the tank lid (7) off the water tank (6) and then screw the cartridge off the tank lid. Dispose of the cartridge in the domestic waste (8). Prior to screwing the new anticalc cartridge into the inside of the tank lid, soak it in water (not in the water tank!) for 24 hours.
  • Keep the tank lid (7) when replacing the cartridge!

Silver Cube™
The Silver Cube TM (24) prevents the growth of germs and bacteria in the humidifier due to the continuous release of silver ions. The use of silver cubes leads to a hygienic room climate. The lifetime of silver is around one year. We, therefore, recommend that you replace the silver cube at the beginning of every humidifying season. The silver cube starts working as soon as it comes into contact with water and also works when the unit is switched off.


  • Repairs to electrical appliances must only be carried out by a qualified electrical technician. If improper repairs are carried out, the warranty lapses, and all liability is refused.
  • Never operate the appliance if the adaptor or plug is damaged, after it has malfunctioned, if it has been dropped or has been damaged in any other way (cracks/breaks in the casing).
  • Do not push any object into the appliance.
  • If the appliance is beyond repair, make it unusable immediately by cutting through the cable and hand it in at the collection point provided for the purpose.

The European directive 2012 / 19 / CE on Waste Electrical and Electronic Equipment (WEEE), requires that old household electrical appliances must not be disposed of in the normal unsorted municipal waste stream. Old appliances must be collected separately in order to optimize the recovery and recycling of the materials they contain and reduce the impact on human health and the environment. The crossed-out “wheeled bin” symbol on the product reminds you of your obligation, that when you dispose of the appliance it must be separately collected. Consumers should contact their local authority or retailer for information concerning the correct disposal of their old appliances.

Rated voltage : 220 – 240 V / 50 Hz
Rated power: 10 – 95 W
Humidity output: up to 550 g/h
Dimensions : 196 x 418 x 196 mm (width x height x depth)
Weight: 3.0 kg
Water tank capacity:  6.3 liters
Sound level: 26 – 34 dB(A)
Complies with EU regulations: CE / WEEE / RoHS / EAC

All rights for any technical modifications are reserved


2 Years warranty This warranty covers defects of construction, manufacturing, and material. Excluded are all wearing parts and improper usage, or consequential damages due to lack of cleaning and/or descaling of the appliance.

Thanks to all people involved in this project: Del Xu for his engagement and for building cultural bridges, John Ye for the engineering and Zeng Ling Shang for his CAD work, Mario Rothenbühler for the photos, Matti Walker for the elegant design and the graphic work.

Martin Stadler, CEO Stadler Form Aktiengesellschaft