The Association between Indoor Carbon Dioxide Reduction by Plants and Health Effects

Table 2

Summary statistics for the blood pressure, serum CO₂, 8-hour mean indoor CO₂, air pollution and weather, and the within-group comparisons between the office room with plants and office room without a plant.

	With plants	Without plant	-test; value
CO2, ppm
			<0.01
IQR	365	973
PM2.5, μg/m^3
			<0.01
IQR	2.2	6.9
TVOCs, ppb
			0.52
IQR	31.5	27.4
Temperature, °C
			0.83
Humidity, %
			0.81
Serum CO2, mmol/L
			0.04
SBP, mmHg
			0.05
DBP, mmHg
			0.13
Headache
			0.68
Dyspnea
			0.81
Fatigue
			0.68
Drowsiness
			0.03