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Table 1 Summary of recommendations for minimum Personal Protective Equipment for Health Care Workers during COVID-19 Pandemic

From: Guidance for otolaryngology health care workers performing aerosol generating medical procedures during the COVID-19 pandemic

 Level 1 PPELevel 2 PPELevel 3 PPE
 Asymptomatic + SARS-CoV-2 negative or unknownX  
 Symptomatic + SARS-CoV-2 negativeX  
 Symptomatic + SARS-CoV-2 positive or high riskXaXa 
 Asymptomatic + SARS-CoV-2 negativeXbXb 
 Asymptomatic + SARS-CoV-2 pending X 
 Symptomatic + SARS-CoV-2 negative X 
 Symptomatic + SARS-CoV-2 pending due to urgency XcXc
 Symptomatic + SARS-CoV-2 positive XcXc
  1. aThis depends on the type and duration of examination and procedure. When there is a prolonged exposure of the HCW within the respiratory cloud of the patient, Level 2 PPE is advised
  2. bThis depends on the local COVID-19 prevalence, test reliability and type and duration of AGMP. In favourable situations Level 1 PPE is adequate
  3. cThis depends on the type and duration of AGMP and patient population: for a short duration, low risk AGMP, like intubation, Level 2 PPE is adequate, whereas for procedures with prolonged aerosol formation, like sinonasal surgery using drills, a higher level of protection may be warranted