Like it or not, face masks have become a part of our daily lives for the time being anyway. So you might too have used them as an possibility to show your personality. Wearing a breathing filter is certainly one step we could all take to protect other people as well as the continued social distancing, self-quarantining at home and proper hygiene measures.
Obstructive Sleep Apnea
Positive airway pressure is commonly supplied for the treatment of acute breathing disorders such as Obstructive Sleep Apnea (OSA). This pressurized air stream is delivered by a pump using Continuous Positive/Bi-level Positive Airway Pressure, being directly coupled to the patient’s airways via mouth and/or nose. While most in the literature on OSA and Bi/CPAP treatment is focused on pressure pump and the therapy conditions (pressure, humidity, velocity, etc.) there is a current surge of interest in the mask/interface as being a main factor leading to the treatment’s outcome. This is particularly true when patients quit CPAP therapy due to mask interface issues including scarring damage, air leakage and insufficient tensioning and poor fit. This study presents a CPAP mask design and development methodology to generate a device that is customized to specific facial features from the wearer. The workflow relies upon a range of digital technologies including 3D scanning.
The presence of blanchable erythema was evaluated by 2 from the researchers, who have been blinded to group allocation. Furthermore, the intensity of redness was evaluated by calculating the absolute maximum Erythema Index between with and devoid of the fitting device across the nasal bridge using ImageJ software (National Institutes of Health, Bethesda MD), as described by Yamamoto et al.30 The redness intensity throughout the nasal bridge was divided by that round the apex from the nose for standardization because individual complexions differed according to the time of day. The apex in the nose was selected since the point of standardization because, even though the nose was covered with the NIV custom face mask, no pressure was applied to the nose from the mask.