Which plants are recommended for AIRY? How do I plant the AIRY? How does AIRY work? Here you find answers to the most commonly asked questions, separated by topics AIRY, plants and pollutants

Questions about AIRY

Find out what’s behind AIRY, how the ingenious AIRY works and which advantages the AIRY brings you.

Why do we need AIRY?

Since the 1990s is it know that pollutants from MDF, paint, insulation material, glue, printers, computers, carpets and textiles evaporate and pollute indoor air. Since Europeans and Americans spend about 80% of their time indoors pollutants like formaldehyde, toluol, and benzol impact the well being of the occupants. The impact of the pollutants results in headaches, tiredness, skin irritations and exposure to the pollutants over a longer period of time can have long term health implications. Sick Building Syndrome for example is, if there is a direct correlation between occupancy in a house and symptoms like headache. This is sometimes also refer to as the Toxic Home Effect.

AIRY solves the problem of polluted indoor air

At first glance AIRY is a just a beautifully designed flower pot. But at a closer look AIRY is a powerful air purifier for your home or office that will significantly improve the air quality and remove pollutants from the air. AIRY does this by increasing the air flow to the roots via the slits at the bottom of the pot. The unique shape of the pot increases the air flow through the stacking effect. All of this happens in complete silence, without electricity, day and night.
What is the Sick Building Syndrome?
One commonly refers to a Sick Building Syndrome if symptoms like headaches, allergies, ski or eye irritations manifest themselves in specific buildings or rooms but disappear after one leaves the facilities. If this occurs to every 5th to 10th occupant in a specific building, this is referred to as Sick Building Syndrome, or SBS in short. Link to Wikipedia article on "Sick Building Syndrome"


How much does AIRY cost
AIRY liefert folgende Komponenten: The AIRY pot is a round flower pot system (diameter 22 cm / 8.7 in) for a single plant. EUR 79.90 The AIRY box is a rectangular pot system (length 50cm / 19.7 in) for up to three plants. EUR 99.90 Also available from AIRY AIRY base: A high-end mineral substrate (lava, pumice, zeolithe) in a 5.5 liter / 1. 45 gallon bucket. One AIRY pot requires one bucket of AIRY base, one AIRY box requires 2 buckets of AIRY base. EUR 12.90 and up Plants: In the online shop you will find a selection of indoor plants that work wonders in combination with AIRY to reduce indoor pollution. Order together with AIRY. AIRY rental: For companies AIRY GreenTech GmbH offers in addition to purchasing also a monthly rental program (6 AIRY and more)
Where can I buy AIRY
Our online shop is only a click away. In the online shop you will find everything you need to start breathing healthier air. The AIRY pot, AIRY box, the AIRY base mineral substrate and compatible indoor plants are all available in the shop We offset all carbon emissions when we dispatch AIRY orders with the help of national and international climate projects. For more information please visit klimapatenschaft.de AIRY is also available on Amazon.
Which payment system can I use?
In our online shop you can use the following payment methods
  • Payment in advance to the AIRY bank account
  • Against invoice through BILLPAY ® (Germany , Austria and Switzerland only)
  • Credit card payment with stripe ®
How long do I have to wait for my order?
If we have the item in stock you will receive it within 1 – 3 days (EU only)
How much does shipment cost?
For order value of EUR 80 there is no shipping cost (Germany), for orders less than EUR 80 shipping is EUR 6.90 with dpd (Germany) For a detailed list of our shipping costs pls click here
Can I return my AIRY order?
Yes. Please use the RMA form at this link. You will need the customer, invoice and item number to return the order.

Care Instructions

How to clean AIRY?

AIRY is dish washer safe. After a single wash in a dish washer AIRY will look like new. Please take AIRY apart before placing AIRY in the dish washer, . This is done in just a few steps

How to take AIRY apart?
AIRY can be taken apart in just a few steps thanks to the simple locking mechanism. This is especially useful when cleaning AIRY, after all AIRY is not only an air purifier but also a wonderful decorative flower pot. After a single wash in the dishwasher, AIRY will be like new. When taking AIRY apart please pay attention to move the outside cover to the middle of the locking mechanism. Please refer to the video for detailed instructions.

My AIRY has a dent – what to do?
Your AIRY arrived but after unpacking you had a nasty surprise … The Airy had a dent! No need to panic. With a simple, forceful push in the right spot it is easy to fix this transport damage. Have a look at the video to see how it is done.

AIRY operation

How does AIRY work?
AIRY supercharges indoor plants to powerful air purifiers. AIRY increases the air flow to the roots of the plant through the slits in the cover and the stacking effect. The result is a healthy plant without the need to repot (air pruning) The integrated water reservoir always provides the right amount of water for the plant. Taking care of plants and clean air is child’s play thanks to AIRY
Has the effectiveness of AIRY been proven scientifically?
Yes, the air purifying qualities of plants in combination with an AIRY pot system have been proven multiple times. The most recent study was carried out by Fraunhofer Institut and proved without a doubt the air purifying effect. Previous studies with AIRY’s predecessor polluSan also proved the effectiveness of the combination of indoor plants and the flower pot system. Click here to find out more
What are the other advantages of AIRY?
In addition to the air purifying characteristics thanks to the ventilation of the roots AIRY has other unique selling points. The award winning design (Red Dot 2016) and the integrated water reservoir are both equally appreciated. The integrated water reservoir enables long watering intervals and makes it easy to look after plants.


How to plant the AIRY pot
It takes only a few steps to plant with the AIRY pot. All you need is: the AIRY pot, a plant, 5.5 litre ( 1.45 gal) mineral substrate or plant soil, and 1.6 l (0.4 gal) Watch our YouTube tutorial for more details. Watch video
How to plant the AIRY box
The AIRY box Is large enough for 2 to 3 air purifying indoor plants. You will need 11 l (2.9 gal) of mineral substrate (available here) and 3.2 l (0.8 gal) of water to fill the water reservoir. Watch our YouTube tutorial for more details. Watch video
How many plants do I need?
As a rule of thumb, we advise one plant per room, if the room is no larger than 25 m2 (270 ft2). An identical plant in an AIRY pot and a traditional flower pot, can purify 8 to 20 times more air in the AIRY pot. For example, for a 75 m2 (807 ft2) large office three medium sized air purifying indoor plants are sufficient to reduce the formaldehyde levels that are above the legal level (MKA reference) by 50% within 4 hours.
Find out more about the plants we recommend here
Why do we guarantee a green thumb?
We developed AIRY so that plants can develop their full air purifying power. There is simply no easier and less expensive way to purify indoor air. We also promise that the plant will be comfortable and grow in the AIRY pot. The ventilation of the root system results in natural air pruning and means that the plants don’t need to be re-potted when the plant grows. All AIRY pots include a built-in water reservoir, which enables the plant to draw the water they require, no more and no less, resulting in healthy plants. The water reservoir also allows for long intervals between watering. With AIRY you get clean air, healthy plants and a beautiful looking home accessory.
Which substrate can be used with AIRY?
All! Our AIRY pot system works with all available substrate, though we recommend the AIRY base substrate because it retains water and is porous for great root ventilation.
How often do I have to repot?
Never, thanks to the slits on the base of the AIRY and the air flow past the roots, the roots stop growing the moment they reach “air”. That stops the outward growth of the roots and focus the growth of the roots inside the pot. This process is called air pruning. This benefits the plant, it keeps growing but never outgrows the pot. Also, the pollutants are not retained in the soil and you don’t need to replant because of the fear of polluted soil.
Why does AIRY have a water reservoir?
There are two reasons we decided to include a water reservoir in the pot. 1) The plant will only take the amount of water it needs and not what is provided when watering the plant. 2) In standard pots without water reservoir too much water quickly needs to wet soil. Wet soil prevents air from circulating past the roots freely. Wet soil can also lead to decomposing process at the roots, which will drown and kill the plant. This cannot happen in the AIRY pot, because the water is in the reservoir.

Fragen zu Pflanzen

Entdecke die erstaunlichen Fähigkeiten von Pflanzen und erfahre, wie sie Dich und Deine Umwelt gesünder machen.

How do plants function?

How are the pollutants absorbed by plants?

Plants absorb air through photosynthesis. Pollutants contained in the air are transported to the root system. At the root system pollutants, especially VOC are broken down with the help of enzymes and micro organism into their basic, chemical components (amino acids, starch, glucose). In other words, the pollutants are transformed into nutrients for the plant. During the NASA study the complete plants was exposed to air, including the root system. With the leaves removed the air purification power of the plant was insignificantly reduced (5% - 10%). The research concluded, that the ventilation of root system enabled the plant to purify the air.

What are stomata?
Stoma is a pore, found in the epidermis of leaves, stems, and other organs, that facilitates gas exchange. Plants can open and close the stomata. The opening and closing of the stomata is a complicated system, influenced by many factors. Stomata open with light, when the plant wants to absorb CO2 to win starch for its growth. Stomata close, when evaporation is so strong, that the plant risks dehydration.
How do roots grow?

The growth of plants follows some basic rules, traffic rules so to speak. Evolutionary processes resulted in plants adapting perfectly to conditions in soil. The roots adapted perfectly for growth in nature, but when in a pot with limited space for roots to grow, it has its limitations.

These are the basic principles how roots grow:

  1. Roots always expand outwards
  2. Roots grow around obstacles
  3. The plan only grows new roots, if existing roots cannot grow anymore
  4. Roots expand into moist soil, with low temperatures

These principles are rooted in the belief that plants protect themselves against dehydration, starvation, erosion, other plants and herbivores.

Indoor plants only have limited space, and it is important to know that only the fine root tips can absorb water and nutrients. They are the key.

Plants and their spezialisation

Are some plants better suited for air purification than others?

There are indeed differences between plants and their ability to purify indoor air. Some plants are useful for a variety of pollutants, others only some specific pollutants. And some are by themselves not able to purify air, but in combination with the micro organism living in the root system, they too break down pollutants in the soil. This way all plants contribute to better indoor air, as long as ventilation to the substrate and root system is ensured.

Find out more: these plants are suitable for air purification

Top benzen purifiers
  • Ivy (Hedera)
  • Spathe flower (Spathiphyllum wallisii)
  • Dragon tree (Dracaena)
  • Snake plant (Sansevieria)
  • Devil’s ivy (Epipremnum)
The best formaldehyde removers
  • Spider plant (Chlorophytum comosum)
  • Weeping fig (Ficus benjamina)
  • Dwarf umbrella tree (Schefflera)
  • Philodendron
The best ammoniac killers
  • Florist’s dairy or hardy garden mum (Chrysanthemum morifolium)
  • Lilly turf or monkey grass (Liriope spicata)
  • Spathiphyllum
  • Flamingo flower or tail flower (Anthurium andreanum)
  • Lady palm (Rhapis excelsa)
Professional nicotine removers
  • Devil’s Ivy (Epipremnum)

Experts for general purification
  • Spider plant (Chlorophytum comosum)
  • Philodendron
  • Monstera

Air purification through plants

Why not simply ventilate the room?

In many offices and energy efficient houses it is not possible to ventilate. Also, airing only reduces the CO2 concentration in the air and CO2 is only a minor part of the problem.

In order to ensure good air quality, the air in the room would need to be exchanged three times, if people are present 5 times, a day.

Source: So funktioniert Stoßlüften (energie-fachberater.de)

How to optimize air purification through plants?

In order to enable air flow to the roots, where the air is predominantly purified, we looked to nature: In the locations where many air purifying plants originate from (South America, Africa, Hawaii etc), they grow in sandy, lose or volcanic soil. The soil is porous, and it is easy for the air to reach the root system.

For the indoor air to reach the root system in a flower pot, we add vent slits on the side of the flower pot and add activated carbon or mineral substrate to the soil. This combination ensures ventilation of the root system, because the soil is less dense and activated carbon has a very large surface area (1500 m2 for each kilo of activated carbon) and binds pollutants.

Additional absorption and purification = better air quality

The activated carbon in the soil has two roles: On the one side the activated carbon binds pollutants, which is especially useful during the initial growing phase of the plant since it provides additional nutrients. Through the additional nutrients the microorganism at the root system also benefit from the activated carbon, and in a symbiotic relationship they contribute to the removal of pollutants. Both effects increase the air purification, when compared to a standard flower pot.

The continuous process of breaking down pollutants into nutrients does not create a pollutant deposit in the soil. Quite to the contrary, this creates a biosystem as in nature, where plants also purify the air through the same process.

How to measure the effect of air purification through plants?

The effect can be measured by placing plants in a closed environment. This closed environment is infused with pollutants, and in the next step one measures how long it takes for the pollutants to disappear.

Comparison between plants

In order to have a meaningful comparison, it is important that all plants are treated equally (well). That means, no rearranging of plants, sufficient water and light etc. It is also possible to measure the impact of stress on plants this way.

Measurement with passive or diffusive sampling

It is also possible to measure the concentration of pollutants in offices, bedrooms, apartments and other facilities with passive sampling devices. These devices are placed inside a room for a specified period. Later in the lab it is tested for the concentration of particular pollutants such as formaldehyde, trichlorethylene etc.

This type of measurement is the most cost efficient, and useful for before and after studies of the effect of plants on air purification.

What is the effect of plants at the work place?

Worldwide studies have shown, that people are more motivated and productive in “green” environments. Plants are an active factor in the health of employees and according to a Norwegian study, in green offices employees take 3.5 sick days less.

These numbers speak for themselves: If a company has 20 employees, each with a monthly salary of EUR 2500, and each employee misses one day less per year it results in 0.39% less sick days, based of 260 work days per year. In other words, with a total payroll of EUR 600,000 it results in a savings of EUR 2340.

By now there are multiple studies, that researched the impact of plants on company health managements. Those studies have shown

  • Indoor plants increase the efficiency of employees
  • Indoor plants reduce the number of sick- days
  • Indoor plants increase the air quality
  • Indoor plants increase productivity and creativity
  • Indoor plants reduce the noise level.
  • Indoor plants save energy by regulating the office micro climate

Source: Studie "Health & Green. Living and working with plants." der eFIG (englisch). 


Zimmerpflanzen machen schlau (Spiegel 12/2011)

Gesundheitsfaktor Psychologie

Bessere Gesundheit dank Pflanzen im Büro (Süddeutsche)

Das grüne Büro. Eine Studie für gesunde und moderne Lebensräume (BMW)

Norwegische Studie zum Einsatz von Pflanzen in Büro, Krankenhaus und Schule

Valid reasons for employer and employee to use plants in the office!

Bogenhanf-Sansevieria, dekorativ in AIRY box, reinigt die Luft von Benzol und Trichloretylen

Erhöht nachts den Sauerstoffanteil in der Luft - ideal fürs Schlafzimmer!

12,90 €*

Questions about pollutants

Learn more about the contents of your indoor air and the effects on your health. Which pollutants are exist and what you can do about it?

Indoor air pollutants

Volatile Organic Compounds (VOC)

Volatile organic compounds are a group of organic compounds with a boiling point and release molecules into the surrounding air.

VOC are ubiquitous and can be detected in car emissions, cleaning solutions etc. and are caused by biogenic and anthropogenic processes. Exposure to VOC can result in headaches, allergies, tiredness and others, symptoms that are often connected to the “sick building syndrome”  


Benzene was frequently use in cleaning fluids and solvents, which is surprising considering the high toxicity of Benzene. Benzene evaporations are toxic and can cause dizziness, and nausea. Constant exposure even in small dosages can cause permanent damage to organs and bone marrow. Three quarters of all benzene emissions are the result of combustion engine emissions.


Most people know formaldehyde as a preservative, for example in cosmetics. But it can also be found in glue and paint, which is why formaldehyde can be found nearly everywhere: laminates, parkette , furniture and other products using glued components cause formaldehyde to enter the house.

Even small quantities can cause irritations in some cases. A constant exposure to formaldehyde typically results in difficulties concentrating, nausea, restlessness and vomiting. In the worst case scenario, the exposure can cause kidney, liver or lung damage.


Toluene is a VOC that is most commonly found in petrol for cars. In addition, Toluene is used in solvents instead of benzene. Toluene can also be found in cigarette smoke. Toluene can damage the reproductive system, and symptoms include tiredness and nausea, and in some cases fainting. Allergic reactions due to exposure to toluene are also possible.


Trichloroethylene was previously frequently used in heavy metal industries but was discontinued for good reasons: Trichloroethylene is carcinogenic and can cause cell mutations. Surprisingly it can still be found in printer cartridges and copy machines.


Are used as plasticiser in plastics for consumer goods, floor coverings, toys and plastic sheets. It can cause changes to the hormones resulting in diabetes, weight gain and s classified as dangerous to the reproductive system.


Used in fertilizer for agriculture, when exposed to air it converts to nitrogenous compounds. Ammonia causes irritation to the skin, eyes and mucous membrane and can cause chronic cough and asthma.

Occurence and impact

Why is air pollution an important topic?

According to the World Health Organization (WHO) about 7 million people died as a result of air pollution. That means, air pollution is the largest environmental risk. About 50% of all deaths are the result of pollutants in closed rooms.

Source: Burden of disease from Household Air Pollution for 2012, World Health Organization

According to the WHO indoor air is 10 to 30% more polluted than outside air. Since people spend around 90% of their time indoors nowadays the impact of the indoor air pollution is immense. First signs of poisoning are headaches and tiredness. Possible later impacts are allergies, asthma, diabetes and cancer. Researchers refer to this effect as the “toxic home effect” or “sick building syndrome”

Continue here on Wikipedia: "Sick-Building-Syndrome"

Which pollutants occur in indoor air?

Predominantly volatile organic compounds (VOC) such as formaldehyde, toluene or benzene. These occur in construction materials, furniture or technical equipment. VOCs continuously evaporate from these items. Fine particles, for example from printers or copy machines, are also a factor.

Source: WHO guidelines for indoor air quality 2010

Typical pollution sources inside the home

Many items inside the home release molecules harmful to our health into the air. Sadly, we bring most of the sources into the home ourselves, especially technical equipment, but also furniture and construction materials contribute to poor indoor air.

The most common sources by rooms:

  • Living room: TV, stereo, open windows, furniture polishers, cushions, glue for wooden parquet
  • Bedroom: Furniture, home textiles, floor sealants and wall coverings.
  • Bathroom: cosmetics, deoderants, bathroom cleaners, air fresheners,
  • Children rooms: plastic and rubber products, carpet, carpet glue, carpet cleaner, foam
  • Home office: computer, printer, copy machine, insulation material
  • Kitchen: gas stove, microwave, oven cleaners, plastics, wall paint
  • Hobby room: MDF wood, paints, glue, turpentine, paint stripper
What are the consequences to our health due to indoor air pollution?

Air quality has a significant impact on our health, or fitness and well- being. Not only outdoor air but especially the air in the rooms we spend most of our times in, the living room, office or class rooms.

The air quality in these rooms is affected by chemical components that not only evaporate from furniture, clothing, floor and wall coverings, paint, printers etc, but also from humans.

Scientific studies (NASA, GSF Research Center) demonstrated that plants can absorb these pollutants and clean the air.

The typical, poor indoor air smell has multiple consequences:

  • Headaches, tiredness and mood swings
  • Difficulty concentrating, loss of appetite, nausea, sleep disorders
  • Sore throat and eye irritations
  • Allergies and heightened sensitivities
  • Impairments of the nervous system
  • Asthma, diabetes,
  • Asthma, Diabetes, infertility
  • Cancer
Who is most at risk?

People with allergies and children. Did you know that children have a faster metabolism than adults and are more susceptible to pollutants? Children not only sleep in their rooms, but they also play and study in their rooms.

If they complain about headaches, coughs or sleep disorders, the source could be biological (mould, dust mites) or chemical.

For the youngest the risk is highest. They frequently put items in their mouth, including toys which may contain traces of heavy metals. We have legal limits for these but regardless of those, we expose our children to too many air borne pollutants and others.

Where should the air be especially clean?

Everywhere, where we regularly spend time, for example in the bed and at work. If one airs the rooms regularly and extensively, selects „healthy” furniture and textiles, uses mild detergents, one can reduce the indoor air pollution concentration. But what is possible at home, may be difficult or impossible to do in other locations.

It is possible to avoid poorly ventilated cinemas and shops, but not the office, class room or hospital, where one is exposed to environmental pollutants over many hours each day.

Fumes, dust and smoke evaporate from machines, work surfaces or furniture. Worst of all, some sources of pollutants cannot be removed, wall and floor coverings are permanently fixed. And then we still have the indispensable electronic equipment in the house such as computers, printers, laptops, TV and stereo, which all contribute to poor air quality.

AIRY - buy online now

AIRY pot White Black Jack Low Res

AIRY Snow White 22cm
Black Jack
79,90 €*

AIRY pot Grey Hot CHili Low Res

AIRY Stone Grey 22cm
Hot Chili
79,90 €*

AIRY box black jack stone grey Low Res

AIRY box Stone Grey
Late Spring
99,90 €*

* all prices include VAT