patient participant inclusion criteria: 1. healthy american society of anesthesiologists (asa) classification 1 or 2 adults scheduled for elective surgery requiring orotracheal intubation 2. 18 years of age or older 3. covid negative (as defined by negative covid swab plus absence of screening symptoms as defined by: fever, cough, shortness of breath or difficulty breathing, chills, repeated shaking with chills, muscle pain, headache, sore throat, new loss of taste or smell) anesthesiologist participant inclusion criteria: 1. attending anesthesiologist 2. have performed at least 5 prior intubations using mcgrath videolaryngoscopes 3. have performed at least 5 prior endotracheal intubations with the locally instituted covid-related modifications 4. must not have more than one prior experience with using the covid barrier box on real patients (prior to the study start; not inclusive of intubations done in the context of this study) 5. have performed at least one practice intubation on a manikin with the covid barrier box prior to initiation of study patient participant

patient participant inclusion criteria: 1. healthy american society of anesthesiologists (asa) classification 1 or 2 adults scheduled for elective surgery requiring orotracheal intubation 2. 18 years of age or older 3. covid negative (as defined by negative covid swab plus absence of screening symptoms as defined by: fever, cough, shortness of breath or difficulty breathing, chills, repeated shaking with chills, muscle pain, headache, sore throat, new loss of taste or smell) anesthesiologist participant inclusion criteria: 1. attending anesthesiologist 2. have performed at least 5 prior intubations using mcgrath videolaryngoscopes 3. have performed at least 5 prior endotracheal intubations with the locally instituted covid-related modifications 4. must not have more than one prior experience with using the covid barrier box on real patients (prior to the study start; not inclusive of intubations done in the context of this study) 5. have performed at least one practice intubation on a manikin with the covid barrier box prior to initiation of study patient participant

patient participant inclusion criteria: healthy american society of anesthesiologists (asa) classification 1 or 2 adults scheduled for elective surgery requiring orotracheal intubation 18 years of age or older covid negative (as defined by negative covid swab plus absence of screening symptoms as defined by: fever, cough, shortness of breath or difficulty breathing, chills, repeated shaking with chills, muscle pain, headache, sore throat, new loss of taste or smell) anesthesiologist participant inclusion criteria: attending anesthesiologist have performed at least 5 prior intubations using mcgrath videolaryngoscopes have performed at least 5 prior endotracheal intubations with the locally instituted covid-related modifications must not have more than one prior experience with using the covid barrier box on real patients (prior to the study start; not inclusive of intubations done in the context of this study) have performed at least one practice intubation on a manikin with the covid barrier box prior to initiation of study patient participant

patient participant inclusion criteria: healthy american society of anesthesiologists (asa) classification 1 or 2 adults scheduled for elective surgery requiring orotracheal intubation 18 years of age or older covid negative (as defined by negative covid swab plus absence of screening symptoms as defined by: fever, cough, shortness of breath or difficulty breathing, chills, repeated shaking with chills, muscle pain, headache, sore throat, new loss of taste or smell) anesthesiologist participant inclusion criteria: attending anesthesiologist have performed at least 5 prior intubations using mcgrath videolaryngoscopes have performed at least 5 prior endotracheal intubations with the locally instituted covid-related modifications must not have more than one prior experience with using the covid barrier box on real patients (prior to the study start; not inclusive of intubations done in the context of this study) have performed at least one practice intubation on a manikin with the covid barrier box prior to initiation of study patient participant

patient participant inclusion criteria: 1. healthy american society of anesthesiologists (asa) classification 1 or 2 adults scheduled for elective surgery requiring orotracheal intubation 2. 18 years of age or older 3. covid negative (as defined by negative covid swab plus absence of screening symptoms as defined by: fever, cough, shortness of breath or difficulty breathing, chills, repeated shaking with chills, muscle pain, headache, sore throat, new loss of taste or smell) anesthesiologist participant inclusion criteria: 1. attending anesthesiologist 2. have performed at least 5 prior intubations using mcgrath videolaryngoscopes 3. have performed at least 5 prior endotracheal intubations with the locally instituted covid-related modifications 4. must not have more than one prior experience with using the covid barrier box on real patients (prior to the study start; not inclusive of intubations done in the context of this study) 5. have performed at least one practice intubation on a manikin with the covid barrier box prior to initiation of study patient participant

patient participant inclusion criteria: 1. healthy american society of anesthesiologists (asa) classification 1 or 2 adults scheduled for elective surgery requiring orotracheal intubation 2. 18 years of age or older 3. covid negative (as defined by negative covid swab plus absence of screening symptoms as defined by: fever, cough, shortness of breath or difficulty breathing, chills, repeated shaking with chills, muscle pain, headache, sore throat, new loss of taste or smell) anesthesiologist participant inclusion criteria: 1. attending anesthesiologist 2. have performed at least 5 prior intubations using mcgrath videolaryngoscopes 3. have performed at least 5 prior endotracheal intubations with the locally instituted covid-related modifications 4. must not have more than one prior experience with using the covid barrier box on real patients (prior to the study start; not inclusive of intubations done in the context of this study) 5. have performed at least one practice intubation on a manikin with the covid barrier box prior to initiation of study patient participant