Frequently Asked Questions

The Venta Humidifier operates by the process of cold evaporation humidification, so you will not see any white residue, vapors, or mists. The disk stack rotates in the water creating a surface area over 45 square feet (LW45). When dry air meets the surface area of the disk stack, the water evaporates and is sent out into the room. By using the cold evaporation process, any excess humidity can be virtually ruled out.

The Venta Water Treatment Additive reliably prevents the growth of germs. You should clean the device every 10-14 days (empty the water, rinse the lower housing and the disk stack with water) because the washed-out air pollutants collect on the bottom of the water reservoir.

That depends on individual needs. Because the Venta Humidifier is very energy efficient, operating costs are very low even when used all the time. For consistent results, it should be run continuously.

Under ideal conditions, a humidity level of 40-60% can be expected. Some factors affecting humidity levels are heating/cooling, home insulation, the layout of the home, air circulation, furniture, floors, musical instruments, ambient indoor temperature, and the amount of water in the appliance. For severely dry areas or during the first days of use, you may notice the water evaporates more quickly and/or a lower humidity level will be reached. The water level of the lower housing should be checked and topped off daily.

The Venta Humidifier should be placed in the center of the room on the floor, or along a wall on the floor away from windows and any heat source. When using your Venta Humidifier for multiple rooms (larger model Venta Humidifiers) it should be placed centrally between rooms. Allow 18-20 inches above and on all sides of the Venta Humidifier to allow proper air circulation. Set up the appliance so it can draw in and expel air without any obstructions. That means free space above the appliance (e.g. not underneath a table) and a minimum distance from walls or furniture of 18-20 inches on all sides.

The appliance works best in closed spaces free of drafts to maintain a consistent level of humidity – just as windows and outside doors are closed when the air conditioner is running. Doors between rooms may be left open to allow for air circulation.

First and foremost, the Venta Humidifier is only humidifying when water is in the appliance. However, the Water Treatment Additive holds dirt and dust particles down on the bottom of the lower housing. When there is insufficient water in the lower housing, a red light indicator will appear and the motor of the LW15/LW25/LW45 Original Humidifier or the Water indicator will illuminate on the LW25/LW45 Comfort Plus Humidifier, and the unit will shut off automatically.

Simply give the appliance a general cleaning with the Venta Cleaner before using the Venta Humidifier again. Tip: Use of the Venta Humidifier Cleaner is recommended before storing the appliance for an extended period of time to remove any mineral deposits that can harden over time. You may also take advantage of Venta’s Ultrasonic Cleaning Services.

Every 10 to 14 days the lower housing should be rinsed/wiped out with a damp sponge. The disk stack should be rinsed off and/or brushed off with a soft brush or sponge. Periodically, the Venta Cleaner can be used for a thorough cleaning. At all times care should be taken to keep water away from the motor. For heavy build-up, we recommend cleaning the humidifier with a 50/50 mixture of water and white vinegar. Please see the user manual for more information.

Measure your space including any adjoining spaces that cannot be closed off (length X width) and choose the corresponding Venta Humidifier based on the coverage area. For factors such as vaulted ceilings, rooms with fireplaces, desert conditions, higher heating temperatures, musical instruments, exotic plants, or pets, we suggest going up one size to maintain ideal conditions.

The Comfort Plus 5 Series utilizes the same natural humidification process as the Original 5 Series, with the addition of advanced new features. The digital touch display with a built-in hygrometer shows the relative humidity in your space, reminder indicators for low water or necessary service, plus new settings for sleep and automatic modes.

We recommend running the humidifier 24/7 at the highest speed for 7-10 days. In the first days of use, the evaporated water is absorbed by dry objects in the room (e.g. books, wooden furniture, textiles, plants, etc.). The optimal humidity is only achieved in the room after this stage.

Yes. Our recommended Venta Water Treatment Additive protects your humidifier from stubborn calcium and limescale deposits.

The Original and Comfort Plus Humidifiers can be set on a smart plug. When switched on again, the humidifier resumes with the settings last used.

This is the normal operation of the disk stack(s) in the Venta Humidifier in order to avoid vigorous splashing as well as keep the unit quiet.

1. Possible mineral deposit contamination. Clean the black Gear Box prongs with white vinegar and a toothbrush
2. Rubber coupling is not inserted all the way into the gear. Simply remove the Gear Box and reinsert securely.
3. Call customer service for additional assistance at 888-333-8218

This is the normal operation of the Venta Humidifier, as it works through cold evaporative humidification.

It typically takes 2-3 weeks for the cleaning to be completed, though it may take significantly longer during the busy season due to the high demand. We recommend that customers have units cleaned during the off-peak season to avoid long waits for Ultrasonic Cleanings. For the current estimated wait time, you may contact Venta Support at 888-333-8218 or [email protected].

That depends on your individual needs. The Venta Humidifier achieves a greater humidifying effect the longer it is in operation. Over-humidification is not possible.

We recommend ventilating in short bursts several times a day. (Leaving windows open constantly drastically reduces the humidifying effect.)

Yes, it is suitable for continuous operation. It has an extremely low power consumption at a motor output of fewer than 8 watts (select models).

Replacement parts can be purchased over the phone at 888-333-8218 during normal business hours. 

You can put the appliance back into operation without problems at any time. We recommend cleaning the humidifier before storage so that no calcium or limescale sediments can harden in the water tray.

After every 14 days, the Service indicator will illuminate to alert you that it is time to clean your humidifier. Once you have emptied your unit, rinsed the lower housing & disk stack, and added a new dosage of Water Treatment Additive, you can press and hold the Service indicator for 3-5 seconds until it disappears. 

The LW60T Kuube L-T and LW62T Kuube XL-T utilize the same natural humidification process of cold evaporation used in our 5 Series in order to add moisture to the air and raise the relative humidity level. Dry indoor air is pulled into the device and is passed over our Venta Disc Stack as it rotates in water. When the dry air makes contact with the wet Disc Stack, it picks up moisture and is sent back into your room humidified. This process creates no vapors, mists, ozone, or white dust and rules out the possibility of over-humidification.

With the Venta Home App, you can easily operate select models remotely – even on the go. Simply download it from the Google Play Store or Apple App Store.

The noise levels of the LW60T WiFi App Control range from an ultra-quiet 21dB(A) at power level 1 to a quiet 43dB(A) at level 5.

The Venta LW60T has very low energy consumption. In continuous operation at level 1, the energy consumption per year is roughly equivalent to half a fuel tank in a compact car.

The Venta Hygiene Disc is a component used within the LW60T Kuube L-T, LW62T Kuube XL-T, and AW902 Professional Humidifiers, as well as LPH60 Kuubel XL-T and AH902 Airwasher devices that attach to the Disc Stack. The Hygiene Disc is designed to maintain hygienic operation by helping to reduce hard lime and calcium deposits as well as germs and bacteria within the water basin and on the Disc Stack and replaces the need for Water Treatment Additive.

Although it is dependent upon usage and water quality, the Hygiene Disc should be expected to be replaced approximately every 3 months. A notification will appear on the Interactive Touchscreen alerting you when it is time to be replaced. Each new LW60T Kuube L-T, LW62T Kuube XL-T, AW902 Professional Humidifiers, LPH60 Kuubel XL-T, and AH902 Airwashers come with a Hygiene Disc pre-installed. Replacement Hygiene Discs can be ordered from our website here, from an approved retailer, or via the Venta Customer Support line at 888-333-8218. The Hygiene Disc is not compatible with the LP60 Kuuboid or AP902 Air Purifiers, or any Original or Comfort Plus Humidifiers.

Please ensure that the ‘CHILD LOCK’ feature is set to ‘OFF’. If set to ‘ON’, please press and hold the ‘CHILD LOCK’ button for 3 seconds and then release to regain control of the Interactive Touchscreen. If the interactive touchscreen does not respond with the ‘CHILD LOCK’ feature set to ‘OFF’, please contact Venta Customer Support at 888-333-8218.

After replacing the Hygiene Disc, press and hold the [OK] button on the Interactive Touchscreen for 3 seconds and then release it to clear the alert.

No. Venta Aromatherapy is designed for use in only 5 Series and earlier models only. Use of Venta Aromatherapy or any other essential oils in the 6 Series or Professional Series devices will result in damage and void your warranty. 

Yes. The Venta Cleaner is required in order to operate the ‘CLEANING’ mode. One 8.5 fluid-ounce bottle is required for each cleaning cycle. A notification will appear on the interactive touchscreen when the cleaning cycle is recommended. Follow the prompts on the touchscreen display to start the cleaning cycle. The cleaning cycle may be initiated at any time (even when not prompted) through the interactive touchscreen. Venta Cleaner can be ordered from our website here, from an approved retailer, or via the Venta Customer Support line at 888-333-8218.

The Disc Stack found in the LW60T Kuube L-T, LW62T Kuube XL-T, and AW902 Humidifiers, as well as in the LPH60 Kuubel XL-T and AH902 Professional Airwashers is designed to stop rotating once the relative humidity in your space has reached the level that has been selected on the interactive touchscreen or Venta Home App; this stops the humidification process. The Disc Stack will automatically start rotating again if the relative humidity in your space drops below the selected level. Ensure that there is water in the device. If the device has run out of water (as is indicated on the interactive touchscreen as ‘Fill Tank’) the Disc Stack will no longer rotate as water is required for the humidification process. Please refill the tank in order to engage the Disc Stack and begin the humidification process. In the LPH60 Kuubel and AH902 Professional Airwashe models, ensure the ‘HUMIDITY’ level on the interactive touchscreen is not set to ‘OFF’. Please select a humidity level between 30% and 70% in order to engage the Disc Stack. The Disc Stack will then begin to rotate provided that the relative humidity in your space is less than what is selected on the interactive touchscreen.

Yes. When sleep mode is activated, the appliance switches to level 1 and dims the display. You can change the fan speed manually in sleep mode at any time.

Indoor air is pulled into the device and passed through the VENTAcel Filter. The VENTAcel Filters capture airborne particles such as bacteria, viruses, mold, dust, dirt, and pollen as small as 0.07 microns. After these airborne particles are removed from the air, the device emits purified air back into your space.

The pre-filter is a protective filter that covers the VENTAcel Filter. The pre-filter does not need to be replaced and can be cleaned as needed by using the hose attachment of a vacuum or rinsing with water.

With the Venta app, you can easily operate the LPH60 and AH902 Airwashers remotely – even on the go. Simply download it from the Google Play Store or the Apple Store.

The Airwashers have a built-in timer you can use to automatically switch it on. Alternatively, you can add your own timer.

The Venta Hygiene Disc is a component used within the LW60T Kuube L-T, LW62T Kuube XL-T, and AW902 Professional Humidifiers, as well as LPH60 Kuubel XL-T and AH902 Airwasher devices that attach to the Disc Stack. The Hygiene Disc is designed to maintain hygienic operation by helping to reduce hard lime and calcium deposits as well as germs and bacteria within the water basin and on the Disc Stack and replaces the need for Water Treatment Additive.

Although it is dependent upon usage and water quality, the Hygiene Disc should be expected to be replaced approximately every 3 months. A notification will appear on the Interactive Touchscreen alerting you when it is time to be replaced. Each new LW60T Kuube L-T, LW62T Kuube XL-T, AW902 Professional Humidifiers, LPH60 Kuubel XL-T, and AH902 Airwashers come with a Hygiene Disc pre-installed. Replacement Hygiene Discs can be ordered from our website here, from an approved retailer, or via the Venta Customer Support line at 888-333-8218. The Hygiene Disc is not compatible with the LP60 Kuuboid or AP902 Air Purifiers, or any Original or Comfort Plus Humidifiers.

Set up the appliance so it can draw in and expel air without any obstructions. That means a minimum space of 18-20 inches above the appliance and a distance from walls or furniture of 8 inches on all sides.

Please ensure that the ‘CHILD LOCK’ feature is set to ‘OFF’. If set to ‘ON’, please press and hold the ‘CHILD LOCK’ button for 3 seconds and then release to regain control of the Interactive Touchscreen. If the interactive touchscreen does not respond with the ‘CHILD LOCK’ feature set to ‘OFF’, please contact Venta Customer Support at 888-333-8218.

After replacing the Hygiene Disc and/or the VENTAcel Filter, press and hold the [OK] button on the Interactive Touchscreen for 3 seconds and then release to clear the alert(s).

If you use your appliance continuously, you should replace filters after about one year, depending on the level of impurities in the air. The Venta Home App and the touch display inform you when the filter needs replacing.

The Disc Stack found in the LW60T Kuube L-T, LW62T Kuube XL-T, and the AW902 Humidifiers as well as in the LPH60 and AH902 Airwasher models is designed to stop rotating once the relative humidity in your space has reached the level that has been selected on the interactive touchscreen or Venta Home App; this stops the humidification process. The Disc Stack will automatically start rotating again if the relative humidity in your space drops below the selected level. Ensure that there is water in the device. If the device has run out of water (as is indicated on the interactive touchscreen as ‘Fill Tank’) the Disc Stack will no longer rotate as water is required for the humidification process. Please refill the tank to engage the Disc Stack and begin the humidification process. In the LPH60 Kuubel Hybrid model, ensure the ‘HUMIDITY’ level on the interactive touchscreen is not set to ‘OFF’. Please select a humidity level between 30% and 70% to engage the Disc Stack. The Disc Stack will then begin to rotate provided that the relative humidity in your space is less than what is selected on the interactive touchscreen.

The Water Treatment Additive helps prevent mineral deposits from becoming hard and difficult to remove – any sediment can be easily rinsed out. In addition, the Water Treatment Additive helps improve the efficiency of the Venta Humidifier by allowing the water to sheet on the disc stack instead of “beading” up – allowing maximum use of every square inch of the disc stack. The Water Treatment Additive also helps prevent odors and improves the performance of the Venta Humidifier. Our Water Treatment Additive not only prevents germ growth, but it also combats calcium and limescale build-up in your appliance and ensures the disc stack(s) are fully wetted for optimal water evaporation.

1. The additive significantly reduces the surface tension of the water. That ensures the individual disks in the disk stacks are evenly wetted (the water does not form beads that roll-off). Only then can the appliance optimally humidify and purify the air.
2. It provides hygienic, perfect operation.
3. The additive modifies the crystalline structure of the calcium and limescale, creating fine sediment which can be removed simply by rinsing with tap water.

Not suitable for humidifier and Airwasher models with Hygiene Discs.

Change the water in your humidifier approx. every 10-14 days after each cleaning. Only add a new dose of additive when you change the water, not when you just top it off. See the back of the bottle to find the right quantity for the various models.

Venta Humidifiers work using the proven cold evaporation principle. This technology does not allow any release of particles or aerosols into the air. We engaged the technical testing organization TÜV Nord to certify this fact. TÜV Nord confirmed that no aerosols which can enter the lungs are emitted from the appliance, either with or without the Water Treatment Additive.

No. All residue found in the lower housing and on the disk stack (white, green-yellowish or brownish deposits) do NOT impair the function of the Venta Humidifier. Using the Venta Water Treatment Additive provides problem-free, hygienic operation.

No, because the ingredients in the Water Treatment Additive do not evaporate. Simply add fresh water to reactivate the Venta Water Treatment Additive. One dose will help keep the Venta Humidifier from scaling up with mineral deposits for 10-14 days.

Only additives from Venta are specially formulated for use on the plastics used for Venta appliances. Other additives such as perfumed oils (including essential oils) from drug stores and pharmacies as well as cleaning agents can damage the plastic. Venta accepts no liability for such damage.

No. The Venta Water Treatment Additive is designed for use in Classic, Original, and Comfort Plus Humidifiers only. The Venta Hygiene Disc has been designed to be used in place of the Water Treatment Additive and provides 3 months of maintenance-free operation.

Yes. The Water Treatment Additive has a shelf life of 30 months from the fill date if unopened, or 12 months after opening. The fill date listed on the bottle is read by the year, followed by the week, followed by the day of the week (starting on Monday), followed by a check digit. For example, Ch.:2021122-0 would be filled in 2021, during the 12th week of the year, on the 2nd day of the week. In this example, the bottle would have been filled on Tuesday, March 23, 2021, and would expire in September 2023 if unopened.

The Water Treatment Additive contains water, quarternary ammonium chlorides, and water softening agents. The Water Treatment Additive does not evaporate and therefore cannot be breathed in, so it is safe for humans and pets. 

Venta has specially formulated and tested our Aromatherapy line of all-natural essential oils permitted to be used in the Classic, Original, and Comfort Plus Humidifiers. Using a different brand will void the warranty.

Ideally, in combination with a Venta Humidifier to create a natural, pleasantly scented atmosphere. Depending on the size of your room, simply add 5 to 10 drops of oil directly to the water tray. And enjoy!

LW25/LW45 Comfort Plus and LW15/LW25/LW45 Original:
For thorough cleaning (approx. every 6 months), pour the entire contents of the bottle into the fresh water and let the appliance run on a low setting for around 2 hours. Then empty out the dirty water and rinse with cold water. We recommend that you ventilate the room during cleaning to avoid any odors which can occur if the appliance is very dirty.

LW60T/LW62T/LPH60/AW902/AH902:
Start the cleaning program by pressing the Clean button on the screen, then follow the instructions. You also need an 8.5-ounce bottle of Humidifier Cleaner.

Venta appliance cleaner is an eco-friendly, mild cleaning agent. It was specially developed to provide perfectly hygienic operation of Venta Humidifiers over a long service life. It is important never to use other, acidic cleaners or descaling agents. They often contain harmful additives (solvents, formic acid, etc.) and can cause stress corrosion on parts made from synthetic materials.

If stored in a cool, dry place, Venta appliance cleaner keeps for up to 30 months if unopened. 

The cleaner itself is odorless. However, if your humidifier or Airwasher is very dirty, cleaning may cause unpleasant odors. We recommend placing your Venta Humidifier next to an open window during cleaning (approx. 2 hours).

Yes, we recommend that you thoroughly clean your appliance regularly even if you use the Water Treatment Additive. This helps extend the service life of your humidifier.

The VENTAcel Nelior Filter is a patented air purifier filter capable of removing 99.95% of airborne particles down to ≥ 0.07 microns; this includes pollen, mold spores, pet dander, dust mites, bacteria, and viruses. The LP60 Kuuboid XL Max Air Purifier utilizes two VENTAcel Nelior Filters, while the LPH60 Kuubel XL-T Hybrid Air Purifier and Humidifier utilizes one VENTAcel Nelior Filter. The LW60T Kuube L-T and LW62T Kuube XL-T Airwashers are filter-free devices that do not utilize the VENTAcel Filter.

The lifetime of the filter depends on the hours of operation and the air quality in your room. Generally, if you operate your air purifier for 24 hours a day, you should change the filter after 1 year. The interactive touch display will remind you of this.

The membrane of the VENTAcel H13 is especially fine and evenly structured. The fibers are just 100 nanometres thick. This means these filters hold back much smaller particles than HEPA filters.

If stored in a cool, dark place, VENTAcel filters keep for several years.

No. Once the lifespan of the filter has expired (as indicated on the interactive touchscreen) a new filter will need to be installed.