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Fine Dust Reduction System

OverviewFine Dust Reduction System

Fine Dust Reduction System

A system that efficiently takes fine dust out and blows clean air into the reduction facility by applying a fi lter suitable for each environment. Products to which this system is applied include 'Open-type Fine-dust Reduction Bus stop', 'Smoking Booth', 'Compact Fine-dust Reduction Unit', and the others of derivative technologies.

Major product lines

  • Open-type Fine-dust Reduction Bus stop
  • Smoking Booth with Fine-dust Reduction System applied
  • Compact Fine-dust Reduction Unit


Open-type Fine-dust Reduction Bus stop

A bus stop that blocks fine dust flying on the roadside and provides a healthy public transportation environment by applying an air purification system [fine-dust reduction, environmental sensors, etc.] inside the bus stop. It is optimized for operation by means of an active automatic control module, on top of simplifi ed maintenance and repair protocols with long-term stopless operation ensured.

Intelligent features

  • Air-cleaning system:  By forming positive pressure inside the stand by means of discharging purified air from the top through a filter-blower, the air-cleaning system can protect the passengers stopping by the bus stop from fugitive fine dust.
  • Intelligent control system:  It is an intelligent technology that collects data around the stand through environmental sensors such as the fine dust sensor and operates the air-cleaning system in response to the change of the situation in realtime, coming with automatic operation control to adjust blowing speed depending on the fine dust concentration level.
  • Solar power system:  The photovoltaic module is attached to the roof of the stand, designed with a technology implemented to generate self-power supply of an average power generation 3,060W per day, consumed to power up LED monitor and light, industrial PC, and mobile phone wireless charger
  • Space-separation safety fence:  Installed on the front side of the bus stop, it primarily blocks the inflow of dust. Clean air generated from the air cleaning system is to be trapped inside the bus stop taking advantage of positive and differential pressure effects through the safety fence, thereby creating a pleasant environment and enhancing energy efficiency

Installation photo

  • General lane type (prototype) _Bucheon city
  • Central lane type (prototype) _Guri city
  • Central lane type (prototype) _Guri city

Future goals

  • Review of installation of about 100,000 locations nationwide (6,000 in Seoul, 25,000 in Gyeonggi-do, etc.)
  • Expanded distribution to other public places (bus terminals, parking lots, construction sites, etc.)
  • Through patenting in joint with government-funded organizations, KLES aims to develop an ‘Opentype fi ne-dust reduction bus stop’ and commercialize the product during 2022.



Smoking Booth with Fine-dust Reduction System applied

A system that sucks in cigarette smoke through the suction port mounted on the ceiling of the smoking booth, and then discharges the clean air to the outside filtered by the ‘HEPA filter’ and the ‘Activated carbon filter’ built in the chair. Developed to minimize the damage from secondhand smoke, guaranteeing the rights of both non-smokers and smokers at a time, and maintain a healthy and comfortable environment.

Product image

Future goals

  • Planning to register products with the Public Procurement Service



Compact Fine-dust Reduction Unit

A compact unit to improve the working environment of workers on duty by applying an air purifi cation system to small-scale facilities such as guard posts or mobile posts.

Product image

Certifi cate and patent

  • Patent

    Space-separated bus stop with fi ne-dust reduction system

  • Patent

    Open-type smoking booth

  • Patent

    Lower fi lter type smoking booth

  • Direct production confi rmation certifi cate

    Bus stop

  • Direct production confi rmation certifi cate

    Smoking booth