Masking does not affect oxygen saturation in patients with a
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Wearing a mask does not affect oxygen saturation in patients with or without asthma, according to research presented at this year’s virtual American Academy of Allergy, Asthma and Immunology Annual Meeting.

Researchers requested that patients at the Michigan Medicine Allergy Clinic complete a survey which covered asthma diagnosis, their perceived control of asthma, and the type of mask that was worn. During the appointment a pulse oximetry reading was performed on patients while they were wearing their mask. Patients also were asked to report how long a mask was worn before the measurement was taken.

A total of 223 surveys were reviewed. Oxygen saturation (SpO2) ranged between 93-100%, with an average of 98%, for those with asthma. The range was 93-100%, with an average of 98%, for those without asthma. There were no significant differences in measurements when it came to gender, race, type of mask used, or the amount of time masks had been worn. For asthma patients who recorded their level of asthma control, similar SpO2 was measured in the well-controlled and not fully controlled groups.

Source: https://www.aaaai.org/about-aaaai/newsroom/news-releases/mask
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