Several clinical procedures have been described as aerosol generating procedure (AGP), including nebulization, high-flow nasal cannula oxygen therapy, noninvasive ventilation, and bronchial hygiene treatment, etc. However, the understanding on the transmission risk of these treatments is still unclear, particularly the methods to reduce the airborne particulate concentrations during these treatments are still lacking. This study is aimed to compare different modalities in reducing airborne particulate concentrations during these aerosol generating procedures, in order to find the most effective method to reduce particle concentrations, ultimately to decrease the transmission risk and protect health care providers.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
OTHER
Masking
SINGLE
Enrollment
18
Filter is used to capture any individual bacteria or viruses that might be suspended within inhaled or exhaled gases
A face tent is connected to a vacuum resource to continuously suction the exhaled gas from the subject, in order to reduce the transmission risk of virus or bacteria
Rush University Medical Center
Chicago, Illinois, United States
aerosol particle concentrations at 1 foot away from subject's face
aerosol particle concentrations will be recorded continuously for 5 mins during the use of each device at 1 foot away from subject's face
Time frame: 5 mins
aerosol particle concentrations at 3 feet away from subject's face
aerosol particle concentrations will be recorded continuously for 5 mins during the use of each device at 3 feet away from subject's face
Time frame: 5 mins
subject's comfort
subject's comfort will be self-evaluated using a visual numerical scale (VNS) ranging between 1 (very uncomfortable) and 5 (very comfortable)
Time frame: 5 minutes after using the device
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