In this study, the effect of improving indoor air quality according to the installation of plants was evaluated in classrooms where students spend much time. The purpose was to prepare sustainable and eco-friendly measures to improve the indoor air quality of school classrooms. A middle school in Bucheon was selected as an experiment subject, and IAQ monitoring equipment based on IoT was installed to monitor indoor air quality. After measuring the basic background concentration, plants and air purifiers were installed and the effects of improving indoor air quality using plants and air purifiers were evaluated based on the collected big data. As a result of evaluating the effects of indoor air quality improvement on the installation of plants and air purifiers, the reduction rates of PM10 and PM2.5 in descending order were plant- and air purifier- installed classes, air purifier-installed classes, and plant-installed classes. CO2 levels were reduced in the classrooms with only plants, and increased in two classrooms with air purifiers. The increase in CO2 concentration in the classrooms with plants and air purifiers was lower than in those with only air purifiers.

Abstract
1. 서 론
2. 연구방법
    2.1 연구대상 및 기간
    2.2 측정방법
3. 결 과
    3.1 식물 및 공기청정기 적용 전 교실 내 실내공기질 평가
    3.2 식물 및 공기청정기 적용 후 실내공기질 개선 평가
4. 고 찰
5. 결 론
References

• 양호형(평택대학교 생활 및 산업 환경 R&D센터) | Ho-Hyeong Yang (Life & Indutsry Environmental R&D Center in Pyeongtaek University)
• 곽민정(평택대학교 데이터정보학과) | Min-Jung Kwak (Department of Data Information and Statistics, Pyeongtaek University)
• 정나라(국립원예특작과학원 도시농업과) | Na-Ra Jeong (Department of Urban Agriculture, National Institute of Horticultural and Herbal Science)
• 김호현(평택대학교 생활 및 산업 환경 R&D센터/평택대학교 ICT융합학부 ICT환경융합전공/평택대학교 학교기업 PTU 테크) | Ho-Hyun Kim (Life & Indutsry Environmental R&D Center in Pyeongtaek University/Department of Information, Communication and Technology Convergence, ICT Environment Convergence, Pyeongtaek University/School-Based Enterprise PTU Tech in Pyeongtaek University) Corresponding author