The city air cleaner       

The efficient solution for improving
air quality in urban environments

The required characteristics define the system – and not vice versa.

The device actively sucks in the outside air and removes pollutants from it, both fine dust particles of categories PM10 and PM2.5 as well as gaseous substances such as nitrogen oxides. The cleaned air is released into the environment. The combination of patent-pending innovations and proven technologies makes a pragmatic solution for better air in cities possible until the causes of air pollution are eliminated. The system will offer an ideal cost-benefit ratio: as much air cleaning performance as necessary at as little cost and effort as possible.

The heart of the city air cleaner are the synchronous cleaning units with a double restraint system. They ensure that 85% of the solid components in the air absorbed such as nitrogen oxides can be retained.
Purevento City Air Cleaner - Model S

Model S

Intake behaviour with simulated exhaust mist

Advantage

Our solution

Maximum performance, minimal efforts.

Effective

Effective

A proven 85 % reduction of toxic substance in the air absorbed – both nitrogen-oxide and particulate matter

Purevento urban air cleaner - Model E

Model E

Efficient

Profitable

An attractive ratio of air cleaning performance to effort and costs

energy self-sufficient

Energy independent basic mode

Air suctioning turbines are powered by solar cells, additional optional power supply by fuel cells or electrical connection
Mobile

Mobile

No connections of foundations needed for roadside operation

Intelligent

Constant survey of absorbed and emitted air
Quiet

Low-noise performance

Maximum operational mode no louder than noise from a busy café

Purevento Stadluftreiniger - Modell E

Model E

Wirksam

Effective

A proven 85 % reduction of toxic substance in the air absorbed – both nitrogen-oxide and particulate matter
Effizient

Profitable

An attractive ratio of air cleaning performance to effort and costs
Energieautark

Energy independent basic mode

Air suctioning turbines are powered by solar cells, additional optional power supply by fuel cells or electrical connection
Mobil

Mobile

No connections of foundations needed for roadside operation
Intelligent

Intelligent

Constant survey of absorbed and emitted air
Leise

Low-noise performance

Maximum operational mode no louder than noise from a busy café

Technology         

The functional principle

Functional principle

The Purevento urban air cleaner functional principle

The closed system absorbs air actively along side the roads where the noxious substances accumulate.

The device extensions, weight and operation are optimally constructed for easiest handling and uncomplicated change of location.

The flow of cleaned air decelerates and is released towards the footpath.The air suction system with its motors made to specification is operated by energy stores which are powered by solar cells mounted on the top of the air cleaner device.

Should higher energy supply be needed e.g. during rush-hour additional power can be supplied by an integrated fuel cell or by an external power supply.

The intelligent control system guarantees optimal energy efficiency as air cleaning is only activated when air pollution surpasses the specified level.

Special developed filter unit

The heart of the city air cleaner are the synchronous cleaning units with a double retention system (preliminary filter, pocket filter F7 and activated carbon filter). They ensure that 85% of the solid components in the air absorbed such as nitrogen oxides can be retained.
Specially developed motors are used for this purpose.

View Highly transparent fabricHigh-tech mesh from trittec AG as preliminary filter

The functional mesh 5plus dust evo forte from trittec AG is a professional solution for permanent protection against insects, pollen and fine dust. The ultra-fine, unique fabric consists of a bicomponent material and creates the highest light and air flow with a highly transparent view. The particle protection fabric has been independently tested and certified as allergy-friendly.

Sensors for fine dust and NO2

In-house development of sensors and associated software. Body housing the sensor for monitoring the air quality at the air inlet and outlet.

Extract from a current Purevento measurement of outdoor air.

Monitoring air quality in urban environments

Gathering professional data on air quality in cities is a costly and timeconsuming activity. We offer such data free of cost as our air cleaners gather this data on a real-time basis.

The sensors diagnose problems such as traffic jams or high air pollution levels on a real-time basis so that counter measures such as redirecting traffic flows or increasing the performance of air cleaning units can be implemented immediately.

Screenshot: www.luftdaten.info

Products                 

The right solution for
every location

Completely energy independent or extremely powerful.

As the demanded levels of air cleaning performance as well as the local conditions will vary, we have developed two versions of the city air cleaner: the energy independent version model E and the high-performance version model S. Same appearance but internal technology optimally fitted to different specifications.

Model E

The energy independent version does not require electrical power connections and is the ideal solution for locations lacking sufficient technical facilities.

According to current plans model E will cleanse 15.000 cubic metres of air per hour with a self-sustaining energy supply, the equivalent of the volume of 450 standard containers. Solar panels on the roof of the air cleaner supply energy. If needed an integrated fuel cell will supply additional energy using eco friendly direct methanol fuel cell technology.

Built-in chassis enables mobile use.

Purevento urban air cleaner - Model E
Purevento City Air Cleaner - Model S

Model S

The high-performance model S will currently cleanse up to 40.000 cubic metres of air per hour, the equivalent volume of 1200 standard container.

The external energy supply enables an extremely compact design and increases the cleansing capacity of this model. The required energy can be supplied easily by using adapter from surrounding energy sources e.g. street lighting or electric charging stations for vehicles.

Stationary use, is transported and set up with a truck.

Current prototype model E

  • Completion Oct. 2018
  • fully functional prototype
  • Technology based on Model E
  • Air cleaning capacity of up to 40.000 m3 per hour
Built-in chassis enables mobile use.

Fields of application       

Roadside application

The air cleaner fits into roadside parking spaces actively absorbing the surrounding air and eliminating air pollutants, particulate matter of the categories PM 10 and PM 2.5 as well as gaseous air pollution such as nitrogen oxides.

Investors and partners: Welcome aboard!

We are open for cooperations, partnerships and investments. If you are interested, please do not hesitate to contact us.

Purevento GmbH
Großenseer Straße 7
22946 Trittau

Phone: +49 (0) 4154 99 303 16
E-Mail: info@purevento.com

Press contact

Dederichs Reinecke & Partner
Public relations agency

Manuel Krieg
Phone: +49 40 20 91 98 278
Fax: +49 40 20 91 98 299
E-Mail: Manuel.Krieg@dr-p.de

Solution of a pressing problem

The protracted and increasingly urgent problem of polluted urban air is finally being solved efficiently.

Practical help for those responsible

The device offers those responsible, e.g. in municipalities, the long-awaited help to fulfil their tasks.

Good deal

This innovative product offers numerous advantages at an attractive price-performance ratio.

FAQs                             

Frequently Asked Questions

How does the city air cleaner work?

The basic principle is quite simple: the ambient air is actively sucked in, fine dust and gaseous pollutants such as nitrogen oxides are retained in a multi-stage filter process. The cleaned air is released into the environment. The key characteristic of the purevento city air cleaner is the unique accumulation of several attractive features: good cleaning performance, low energy consumption, uncomplicated handling and cost-effectiveness are in balance - thanks to the ideal combination of proven technologies and patent-pending innovations.

Where does a city air cleaner make sense?

In short: Wherever the air is polluted with excessive concentrations of pollutants, worldwide. This can be on busy roads and squares, in regions with smog pollution, on construction sites and other places where a lot of dust is generated. The city air purifier can help companies, retailers and organizations, property developers, hotels and restaurants with outdoor areas, airports and supermarket car parks, wherever the air pollution is too high.

Are connections and other preparations necessary?

Dimensions, weight and mode of operation are optimized for easy relocation and handling - no foundation required. Model E of the urban air purifier is fully self-sufficient and does not require any connections, Model S is supplied with additional energy by an external power supply. In any case, the city air purifier is ready for operation within a short time.

What noise is to be expected?

The city air purifier is low-noise, even in full operating mode it is no louder than the background noise of a busy café. As a rule, traffic noise will predominate anyway, because the city air purifier only becomes active when the pollution in the ambient air requires it - as in rush hour, for example.

How strong are the air flows at the urban air cleaner?

The suction airflow is about as powerful as that of a larger vacuum cleaner, strong enough for effective efficiency, but moderate enough not to restrict road traffic or pedestrians. The purified air is distributed and slowed down before it gently flows out at the top of the city air purifier.

Where can I experience a city air cleaner in operation?

Come and visit us in Trittau in the south of Schleswig-Holstein and experience the city air purifier in action. We would be pleased to inform you about the current status of further installations. You can simply contact us by mail.

What does a city air cleaner cost?

During the development of the device, economic efficiency in relation to performance was the top priority. Depending on the model, configuration, extras and last but not least the desired quantity, we can make you an attractive, individual offer. Our sales team is looking forward to making you a proposal: sales@purevento.com

What does the brand name "Purevento" mean?

Our brand name "Purevento" is composed of the terms "Pure" for "pure" and "vento" for "wind". This combination of words illustrates the air-purifying effect of a fresh breeze that helps reduce the concentration of air pollutants - just like Purevento's urban air cleaner.

Should air pollution not be avoided instead of cleaning air afterwards?

Of course, this must be the primary objective of all efforts to achieve clean air. However, this is a long way off: as long as cars are powered by combustion engines, the air is polluted with solid and gaseous pollutants. Even purely electric road traffic would still produce fine dust due to tyre and brake abrasion. Therefore, an interim solution for better air quality makes sense in many places. The urban air purifier sees itself as a bridging technology that provides relief until the causes of air pollution have been eliminated in the long term.

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