Air Quality in a Dental Skills Lab during the SARS-CoV-2 Pandemic: Results of an Experimental Study.

Interestingly, for all non-AGP2 trials, we found a decreasing trend for CO 2 room concentration and a significant difference in the values of ΔCO 2 compared to both AGP phases (−896.6(−1307.3/−510.8) ppm per hour, p ≤ 0.011; Table 1 ).

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Results Contrary to AGP2, the majority of all AGP1 trials (73%–91%) resulted in an increasing trend of particle matter in the room ( Figure 1 ).

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