CO2 Purify Effect on Improvement of Indoor Air Quality (IAQ) Through Indoor Vertical Greening

Conference paper


Modern people usually situate inside buildings, therefore indoor air quality (IAQ) is important to living environment. In this research, we measured the transpiration rate of 50 experimental plants first, and then we chose Bird’s-Nest Fern (Asplenium nidus) as experimental subject to measure CO2 adsorption, which was one of the common indoor plants with high transpiration rate in Taiwan. We constructed an indoor 189 pots green-wall of Bird’s-Nest Fern. CO2 adsorption was measured continuously before, during and after the experiment. The experiment consisted of three tests, A: Without plants (day time), B: With plants (day time), C: With plants (with light, night). Three measurements were compared between different tests from A to C. The result of the experiment indicated that the density of CO2 was reduced from 2,000 to 600 ppm in 5.37 h of test C. In average, the efficiency of CO2 adsorption was 1.38 ppm/h each plant. The indoor temperature decreased to 2.5 °C and relative humidity increased about 2–4 %. We concluded that Bird’s-Nest Fern had superior properties to CO2 adsorption, temperature and humidity conditioning to indoor air quality improvement.


Bird’s-Nest Fern (Asplenium nidus Linn) CO2 Herbaceous foliage plant Indoor air quality (IAQ) Indoor vertical greening Leaf porometer Transpiration rate 



This paper represented part of the results obtained under the support of the National Science Council, Taiwan, ROC (No. NSC 101-2627-E-027-001-MY3).


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Copyright information

© Springer Science+Business Media Dordrecht 2014

Authors and Affiliations

  1. 1.Department of ArchitectureNational Taipei University of TechnologyTaipeiTaiwan R.O.C

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