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RECOMMENDED TO CLEAN WITH EZCal

TROUBLESHOOTING

Switch off the appliance and 

unplug it from the socket before 

cleaning it. Clean the water tank 

and the base regularly. Use water 

only, no detergents. 

For best results use EZCal custom 

cleaning agent for AIR-O-SWISS 

products to remove deposits from 

the water base regularly. Do NOT 

run the unit when using EZCal. This 

can cause damage to the product 

and voids the warranty. 

What is EZCal?

EZCal from AIR-O-SWISS is an easy and safe 

cleaning and descaling agent recommended for 

all humidifiers. It cleans mineral build-up in the 

water base.

There is a sample of EZCal included in the packaging of your humidifier!  

Only use 1 packet for 32oz of water. Do not change the ratio. Thoroughly rinse the base with tap water and make 

sure no EZCal residue remains in the base. Instructions for use are on the packet. Please note: EZCal from AIR-O-

SWISS is the only recommended cleaning and descaling solution. Do NOT use any other cleaning solutions since  

it can damage the product. Any use of cleaning solutions apart from EZCal will void the warranty. 

EZCal descaling agent is available at selected retail stores 

and online at www.airoswiss.net.

FURTHER INFORMATION

DO NOT DISCARD! Save for future reference. 

Please read the manual or check our website www.airoswiss.net for further information.

White dust is emitted from the unit

White dust particles are minerals that are broken up in tiny 

pieces by the ultrasonic process. Solve the problem:

•  Soak the demineralization cartridge in a bowl of water for 

a minimum of 24 hours. If the cartridge is soaked in the 

water tank, the water in the tank and the base needs to be 

replaced before using the unit. 

•  Exchange the demineralization cartridge after 1– 2 months 

when you use very hard water, for softer water after 2– 3 

months. No matter how hard your water is, exchange the 

cartridge at the very latest after 6 months.

•  Don’t use water from a pre-installed water softener, or 

sodium instead of calcium will be emitted from the unit. Use 

distilled water instead and remove the demineralization 

cartridge.

•  For very hard water areas use only distilled water and 

remove the demineralization cartridge. 

•  Use reverse-osmosis water (R-O water) instead of distilled 

water and remove the demineralization cartridge.

Cleaning light is on 

•  Switch off the unit and unplug it. Empty the water in the 

base. Rinse the base with hot/clean water. Do not sub-

merge the base! Visually inspect the base for dirt or mineral 

build up. If soft water is used, decalcifying the unit every 4 

weeks with EZ Cal is suggested. If hard water is used the 

unit should be decalcified every 2 weeks. Do not forget to 

reset the cleaning light afterwards.

Reset cleaning light

•  The cleaning light does not automatically reset. Hold down 

the On/Off Dial (button A in instruction manual) until the 

light disappears. The light automatically comes on approx. 

14 days after of plugging in the unit.

Use of distilled water

•  For best results with your ultrasonic humidifier use distilled 

water and remove the demineralization cartridge.

The hygrometer on unit reads a different humidity 

level than external hygrometer

•  Not all hygrometers are calibrated the same, and most are 

off by +/- 5%. Plus the humidity level is not the same in the 

whole room. The air circulation and temperature are diffe-

rent in every corner of the room and may affect the humidity 

level. The unit should not be placed near a heat vent or a 

radiator as the heat will absorb all of the moisture.  

Humidity level is not changing or does not reach the 

desired humidity level

•  If the water tank needs refilling more than once per day, 

the unit is working properly and the climatic condition in the 

room has an influence on the humidity.

Reasons for low humidity level:

•  air circulation is very high (air is fully exchanged several 

times per day – the humidifier needs to starts its work from 

scratch)

•  insulation of home (see air circulation)

•  open space with high ceilings (not only the footage of 

the room counts but also the height) – high-rise buildings 

require more humidification.

•  open windows – works similar to air circulation (if it is very 

cold outside don’t open the window more than 2 times per 

day for 3 minutes)

•  big difference between outside temperature and inside  

temperature – the colder the air the less moisture it is 

capable of holding. The more the air is heated up the lower 

the percentage of relative humidity (= the amount of water 

vapor in the air, compared to the amount the air could hold 

if it was totally saturated)

•  position of the unit – if it is placed close to a door, window 

or air vent. This increases the air circulation.

No mist / unit is not working / empty indicator 

keeps flashing

•  Fill up the water tank. Check to see if water is flowing 

through the demineralization cartridge (attached to the 

water tank cap). If the water tank is full but there is only little 

water in the base it indicates that the water is now flowing 

through the demineralization cartridge.

•  Wait for 15 minutes to allow the mist to come out of the unit.

•  If the unit is not working and the empty light is not flashing 

you might have set the desired humidity too low and the 

current humidity level in the room is higher. That is why the 

unit switches off automatically.

•  If the empty indicator keeps flashing and the tank is full, the 

water is not flowing through the cartridge. Exchange the 

cartridge or the granules in the cartridge after 2– 3 months, 

in areas with hard water exchange the cartridge after 1– 2 

months. However the demineralization cartridge and or the 

granules must be exchanged at the latest after 6 months or 

the unit does not reach its full performance anymore.

•  If the granules are new, see the following instructions: 

Make sure the cartridge and/or granules were soaked 

for 24 hours, dry granules take even longer for water to 

filter through the cartridge and into the base. Next, please 

remove a tablespoon of granules from the cartridge, and 

throw them away. When there are too many granules in the 

cartridge it does not allow water to flow from the tank to the 

base.

Unit is running intermittently

•  How long has it been since the contents of the cartridge 

were replaced? If 2-3 months have passed, it is time to 

replace the contents of the cartridge. However the demine-

ralization cartridge and or the granules must be exchanged 

at the latest after 6 months or the unit does not reach its full 

performance anymore.

•  If the contents of the cartridge were just replaced there are 

probably too many granules in the cartridge. Remove a 

tablespoon of granules from the cartridge.

ACCESSORIES

Do I need to keep any parts before I replace the 

demineralization cartridge?

•  Yes, always keep the water tank cap (this is the piece that 

attaches the demineralization cartridge to the water tank).

What is the Ionic Silver Stick (ISS) and how long  

is it good for?

•  The Ionic Silver Stick

®

 (ISS) keeps the water free of micro- 

bial growth. The ISS uses the anti-microbial effect of silver to 

prevent the growth of microbes in the water base. It begins 

to function as soon as it comes into contact with water, even 

if the unit is switched off. The Ionic Silver Stick should be 

changed every year.

Placement of the Ionic Silver Stick

•  Please see the quick set up guide for more instructions.

Replacement reminder

•  In each ISS box and on all the new products there is an 

ISS lifecycle indicator. Check the box of the month when 

starting to use the ISS and write the year on the line in- 

dicated. Exchange it after one year.

Do not submerge base in water!  

The cleaning indicator still appears 

on the display after cleaning. To 

reset hold down the On/Off Dial 

until the cleaning light disappears. 

Thoroughly rinse the base with tap 

water and make sure no EZCal 

residue remains in the base!

ACID

 140°F / 60°C

30 min

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