FAQ
DEAR VENTA CUSTOMER,
Thank you for placing your condence in the Venta Kuubel XL-T. We
are convinced that breathing perfectly puried and humidied indoor
air will result in an improvement to your well-being. The following
questions and answers will help you get the most out of your unit and
allow you to fully understand the unique Venta technology.
WHY DO I NEED A VENTA KUUBEL XL-T?
The Venta Kuubel XL-T is a hybrid without compromise. Most people
spend around 85 % of their time indoors, and indoor air is 10 to 30
times more polluted than the air outside. The Venta Kuubel XL-T is
demonstrably eective at eliminating indoor air pollution that can
impair one‘s health and well-being. Even the smallest particles,
as small as 0.07 µm, are ltered out of the air; this includes pollen,
bacteria and viruses. For humidication, the Kuubel XL-T utilizes
Cold Evaporation technology and our Venta Disc Stack to keep
your indoor air humidied to optimal level with no chance of over-
humidication. This is an uncompromising unit that requires minimal
maintenance and is capable of exceeding the most demanding
expectations. All Venta products are made in Germany with the
highest quality materials to achieve the highest standard of service
and are developed with one function in mind: improve the quality of
life in indoor spaces.
HOW DOES THE VENTA KUUBEL XL-T WORK?
The Venta Kuubel XL-T is equipped with a fan that pulls the polluted
air from the room and into the unit. The air is rst passed through a
pre-lter that removes large airborne particles such as house dust.
Then the air is passed through our exclusive VENTAcel lter that
removes pollen, smoke, bacteria, viruses and other pollutants as
small as 0.07 µm. Next, the cleaned air is passed over our rotating
Disc Stack which has a total surface area of 26.9 sq. ft. As the Disc
Stack rotates, it collects water from the water tray. As the cleaned air
passes over the wet Disc Stack, it picks up the moisture and beco-
mes humidied. Finally, the fan sends out the puried and humidied
air back into the room.
WHAT MAKES THE VENTA KUUBEL XL-T SO SPECIAL?
The Kuubel XL-T utilizes a special patented lter technology. The
NELIOR membrane air lter is composed of a homogenous layer
of bers with each ber’s diameter being around 100 nanometers.
This special composition and mechanical stability results in a lower
operating pressure dierential (≤ 50 %) and the highest ltration
eciency. The VENTAcel lter achieves 99.95 % ltration of particles
≥0.07 µm. This performance is unsurpassed by all other HEPA and
ULPA lters currently available on the market.
FOR WHAT ROOM SIZE IS THE KUUBEL XL-T RECOMMENDED?
Depending on the air pollution level, the Venta Kuubel XL-T puries
rooms up to 480 sq. ft. and humidies rooms up to 1020 sq. ft.
WHERE IS THE BEST PLACE FOR THE KUUBEL XL-T?
The unit should be set up in such a way that the room air can be
circulated without hindrance. This means a minimum 2 inches of
space on all sides (6 in. recommended) between the unit and any
walls or furniture.
WHAT IS THE OPTIMAL OPERATING TIME OF THE KUUBEL XL-T?
It depends on the individual requirements and pollution level in the
room. Longer runtimes will result in more extensive cleaning and
humidication of the air. Because of our cold evaporation system,
however, the air will never become over-humidied.
CAN THE KUUBEL XL-T RUN FOR 24 HOURS A DAY?
Yes, the Kuubel XL-T is suitable for continuous operation. The unit is
very energy ecient and only consumes a maximum of 30 watts on
the highest speed.
With the help of the “Auto” mode, the Kuubel XL-T can also automa-
tically react to changes in the condition of the air. Depending on the
level of particle pollution in the room, the unit will automatically raise
or lower the fan speed accordingly. This ensures very eective and
ecient operation 24 hours a day.
WHAT HAPPENS IF THE KUUBEL XL-T DOESN‘T HAVE ENOUGH WATER?
If the Yellow “Fill Tank” indicator appears in the display, the water
tank has run empty but there is still water in the tray. As such, humi-
dication and purication are still taking place. When both the tank
and the tray have run empty, the “Fill Tank” indicator glows Red and
humidication stops while purication continues.
HOW DO I KNOW IF THE AIR QUALITY IN THE ROOM HAS IMPROVED?
It is important to know whether the air quality in the room is impro-
ving. Most impurities or odors are invisible. The Venta “Air Quality”
display can help you monitor the air quality in your home. The fully
automated air sensor continuously monitors the air quality in the
room, and the results are displayed on the interactive screen. Green
represents very good air quality while Red indicates poor.
WHAT IS THE POWER CONSUMPTION OF THE KUUBEL XL-T?
The Kuubel XL-T consumes at maximum 30 watts of energy on the
highest speed.
HOW LOUD IS THE VENTA KUUBEL XL-T WHILE IT IS RUNNING?
The Kuubel XL-T ranges from a whisper quiet 17 dB (A) at the lowest
speed to a very quiet 47 dB (A) at the highest speed.
DOES THE KUUBEL XL-T HAVE A NIGHT MODE?
Yes. Activating the “Sleep Mode” via the interactive display screen
reduces the fan speed to level 1 and dims the brightness of the
display screen. This mode is useful for people who are sensitive to
noise or light while sleeping but still want the unit to operate over-
night. The unit can be taken out of Sleep Mode at any time.
WHAT HAPPENS WHEN THE KUUBEL XL-T HAS NOT BEEN USED FOR AN
EXTENDED PERIOD OF TIME?
The Kuubel XL-T can be put back into operation at any time without
problem. However, the tank and tray should be emptied and cleaned
prior to storage or extended periods of non-usage to prevent lime-
scale sediment from hardening.
HOW CAN I CLEAN THE KUUBEL XL-T?
Every 10-14 days, we recommend emptying the remaining water
from the tank and the tray. Then rinse the tank, tray, and disc stack
under fresh, owing water.
The unit also features an automatic, intensive self-cleaning program.
The cleaning process requires (1) 250 ml bottle of Venta Cleaner. The
interactive display screen will notify you when it is time for a cleaning
and will also guide you through the process. You may also perform
additional cleanings at any time based on your discretion. The pro-
cess lasts approx. 1-2 hours.
NELIOR-Filter medium Traditional Filter medium
FREQUENTLY ASKED QUESTIONS
Regarding the optimal use of the Venta Kuubel XL-T Purifier & Humidifier
AIR-CRAFTING SINCE 1981