PMC8548982_01
HEPA filter systematically used in the exhaust of the artificial pneumoperitoneum and smoke produced.
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PMC8548982_01_CRIOG2021-5040873.001.jpg
fig1
Efficient air filters (such as the HEPA filter:Figure 1) were systematically used in the exhaust of the artificial pneumoperitoneum and smoke produced.
PMC8548982_02
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PMC8548982_04