Table 4.

Results of the survey

	Median (Q1; Q3)
How do you evaluate the aerosol release for the different respiratory devices? (No release = 0; Maximum release = 10)
· Laryngeal Mask	9 (6; 8) * +
· Laryngeal Mask + Shower cap	3 (1; 3) + §
· Intubation	0 (0; 2) * §
How do you evaluate the Rescuers Safety for the different respiratory devices? (1 = Safe; 2 = rather safe; 3 = rather unsafe; 4 = unsafe)
· Laryngeal Mask	3 (2; 4) * +
· Laryngeal Mask + Shower cap	2 (1; 2) §
· Intubation	1 (1; 2) §
How do you evaluate the Resuscitation Quality for the different algorithms performed? (1 = efficient; 2 = rather efficient; 3 = rather inefficient; 4 = inefficient)
· ERC 2021	1 (1; 1) § * +
· COVID-19
· Laryngeal Mask	2 (1; 2) % $
· Laryngeal Mask + Shower cap	2 (2; 2) %
· Intubation	2 (2; 3) % §
How do you evaluate the minimization of no-flow-time for the different algorithms performed? (1 = efficient; 2 = rather efficient; 3 = rather inefficient; 4 = inefficient)
· ERC 2021	1 (1; 1,25) § * +
· COVID-19
· Laryngeal Mask	2 (1; 2) % $
· Laryngeal Mask + Shower cap	2 (1,5; 2) %
· Intubation	2 (2; 3) % ß
How do you evaluate the optimal Rescuers Safety for the different respiratory devices? (1 = Safe; 2 = rather safe; 3 = rather unsafe; 4 = unsafe)
· ERC 2021	3 (2; 3)* +
· COVID-19
· Laryngeal Mask	3 (2; 3) * +
· Laryngeal Mask + Shower cap	2 (1; 2) % §
· Intubation	1 (1; 2) % §

Legend: *P < 0.001 vs. Laryngeal-Mask + Shower cap

+ p < 0.001 vs. Intubation

§ p < 0.001 vs. Laryngeal-Mask

% p < 0.001 vs. ERC 2021

$ p = 0.01 vs. Intubation

ß = p = 0.01 vs. COVID-19-Laryngeal-Mask

ERC = European Resuscitation Council; COVID-19 = Coronavirus-Disease 2019; Q1 = First Quartile, Q3: Third Quartile