Finding F-0485

“Outdoor air required inside the surgery room was 167 l/s, while the actual ventilation was 51 l/s.”

Particle and Carbon Dioxide Concentration Levels in a Surgical Room Conditioned with a Window/Wall (2020). International journal of environmental research and public health. Page 6. CKB 7696

Structure

Factor: Air exchange rate (air changes per hour)
Intervention: Air conditioning
Population: surgical staff and patients
Setting: operating room, BR
Study design: measurement of particle number concentration (0.3-10 μm) and CO2 in one surgical room with a window/wall air-conditioning system and the adjacent corridor in Brazil during a single surgery and two subsequent surgeries, with outdoor air ventilation calculated from CO2 and compared with the requirement (class 4)
Effect: other 51
Caveat: outdoor airflow in l/s filed under air-exchange-rate; both values are calculated from the CO2 balance, the requirement is not a measurement

A Finding records what one published document states, verbatim and with its page. It is not a conclusion of Coridum; see the Claims that build on it.