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Table 4 Logistical advantages and disadvantages of PAPR, adapted from Wong et al. [27]

From: Use of powered air-purifying respirator (PAPR) by healthcare workers for preventing highly infectious viral diseases—a systematic review of evidence

Advantages of PAPR Disadvantages of PAPR
PAPRs use only HE filters, which have a greater filtration efficiency against the smallest pathogen particles compared to face-filtering respirators (FFRs) Challenges in verbal communication
PAPR systems have assigned protection factors (APF) of at least 25 May limit the visual field
Provides eye protection (hooded models only) Inability to auscultate chest
PAPRs with loose-fitting headgear can be worn with a limited amount of facial hair Proper maintenance of PAPR requires disinfection, cleaning, safe storage, and battery maintenance
Inability to re-use disposable filters between patients (need a large supply of filters)
Risk of battery failure and inadvertent exposure
Requires decontamination after use
More expensive than individual N95 respirator (although achieve more wears per piece of equipment with PAPR)
Requirement for the education of a significant proportion of HCW workforce