Formaldehyde is the most common volatile organic compound (VOC) emitted from household materials and is associated with many health risks, including sick building syndrome. A potted Hedera helix was used as an air purifier to remove the gaseous formaldehyde. Development of a test platform is necessary to evaluate the indoor performance of air cleaning protocols. The box modulation with a novel emitting source of volatile pollutants was applied in an air quality monitoring experiment to mimic a non-ventilated workplace. The environmental conditions and the pollutant concentrations in the air were measured in real time and the monitoring data was uploaded to cloud storage media by a wireless technique. Our results demonstrate, compared with natural dissipation, a 70% decrease in the required time to achieve 1.0 ppm of gaseous formaldehyde was achieved using the biological purifier. In addition, the effect of photo-regulation was not significant in use of potted plants to remove gaseous formaldehyde. Our study can provide an accurate and available platform for the public to determine if the health risks of VOCs in their building space.