A Portable Device Capable to Ensure a Good Air Quality Inside a Rain Covered Baby Carriage With a Particle Removal Efficiency of About 90%

Abstract

PP-31-012 Background/Aims: Protecting children from exposure to airborne pollutants along busy roads is mandatory. The aim of this study is to check the efficiency of a portable device to deliver filtered air inside a rain covered baby carriage. Methods: The device is applied externally to the rear of a baby carriage (internal volume, 0.2 m3), and delivers 60 L/min of ambient filtered air via a short pipe inside. The number of particles/L was measured with a particle profiler (Model 212, Metone) with a sampling time of 10. Particle classes sized 0.3–0.5, 0.5–0.7, 0.7–1.0, 1.0–2.0, 2.0–3.0, 3.0–5.0, and 5.0–10 um were studied. Results: Mean number of particles 0.3–0.5 um decreased from 63,329/L to 6826/L, for background and filtered air, respectively, in about 12 minutes, with a half-life of 2 minutes. Overall efficiency rate ranged 89.2%–98.1%. Conclusion: The efficiency of the device in delivering clean air into a baby carriage in our experimental setting is promising for testing both in the real world and in a clinical setting.