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. Author manuscript; available in PMC: 2022 May 1.
Published in final edited form as: Environ Res. 2021 Mar 8;196:110923. doi: 10.1016/j.envres.2021.110923

Figure 2. Distribution of particle infiltration ratio by HVAC/Heating system usage and windows opening in Atlanta.

Figure 2.

(Top Left) Percentage of homes using HVAC/Heating system by month. (Top Right) Particle infiltration ratio by daily HVAC/Heating system usage. (Bottom Left) Percentage of household windows opening by month. (Bottom Right) Particle infiltration ratio by daily windows opening.