Table 3.

Total Demand for N95 Filtering Facepiece Respirators (Respirators) and Effect of Demand Reduction Strategies 1–3 on Total Demand for Respirators (in Millions)

Model	Pandemic Scenario	Lower Bound	Upper Bound
Base case	20% AR, low severity	2302	3053
	30% AR, low severity	1662	2194
	20% AR, high severity	2476	3467
	30% AR, high severity	1867	2703
Demand reduction strategy 1	20% AR, low severity	573	754
	30% AR, low severity	412	536
	20% AR, high severity	610	838
	30% AR, high severity	454	638
Demand reduction strategy 2	20% AR, low severity	20	56
	30% AR, low severity	25	66
	20% AR, high severity	57	139
	30% AR, high severity	67	169
Demand reduction strategy 3	20% AR, low severity	61	80
	30% AR, low severity	48	74
	20% AR, high severity	83	138
	30% AR, high severity	78	154

Effect of demand reduction strategies was calculated assuming the base case distribution scenario. Description of demand reduction strategies: Demand reduction strategy 1: limited reuse of respirators across all settings; Demand reduction strategy 2: limited reuse of respirators in intensive care unit (ICU), general ward (GW), emergency department (ED), and nursing homes, and substitution of surgical masks for respirators in outpatient clinics, emergency medical service (EMS), and for fire and police responders, with removing and putting on the same surgical masks for different patients in these settings; Demand reduction strategy 3: partial substitution of respirators by elastomeric respirators in the ICU and ED settings; limited reuse of respirators in GWs, nursing homes, and EMS settings, with use of surgical masks in outpatient clinics and by fire and police responders (removing and putting on the same surgical masks for different patients).

Abbreviation: AR, attack rate.