We hope these simple cost-effective measures will be of benefit for children in this pandemic in all socio-economic settings. Avoid Double face mask or face mask and face shield in children. Limited time wearing of face mask in children who are asthmatic/respiratory problems, Nasal obstructions etc.Ħ. While off the mask, children can be encouraged to do minimal deep breathing exercises.ĥ. Wear the face mask intermittently, like 30 minutes wear and 5-10 minutes off the mask with social distancing.Ĥ. Increase the air exchange ventilation in closed spaces like classrooms.ģ.
Use a single-layered medical or double-layered cloth face mask.Ģ. We propose the following simple strategies for children wearing face masks to reduce inhaled CO2:ġ. This is true in adults as well and many feel tired or uncomfortable after wearing masks throughout the day or their work period. The results show that there is a significant increase in the CO2 levels in inhaled air higher than advisable limits while wearing masks. This paper brings out timely evidence on inhaled Carbon dioxide (CO2) in children due to face mask wearing in this Covid-19 pandemic. The comparison of these volume is of extreme importance for the discussion and may change the author's conclusions. Together with the rest of the respiratory airways, the respiratory system has also a dead volume that is much larger than the dead volume between the mask and the face. The lungs never collapse completely during respiration. The relevant data would be the comparison between this dead volume and the lung capacity and/or the volume of one respiration cycle. The authors refer to the dead volume behind the mask as the main problem. This also explains why the authors measure average concentrations of around 2700ppm-CO2, way above the ambient value of 740ppm, even when no mask is present. Thus, it is impossible to separate the concentration of CO2 in inhaled and exhaled air using this device. A normal respiration cycle has a duration of 3 to 4 seconds. This device is unsuitable for measuring the transient concentrations during the respiration processes. 2000ppm) and a time response T^90<=20 seconds for CO2. The authors use an CO2 incubator analyzer (0-20%) that has an accuracy of 1% of the range (i.e. Shared Decision Making and Communication.
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