Percentage of hospitals that adhered to recommendations for donning and doffing respirators, based on observations of HCWs

	Adherence rate (%)
Hospital-level adherence threshold	50%	75%
1. Positioned correctly on face? (adherent: yes)	99.0	84.5
2. Facial hair under seal? (adherent: no)	95.4	84.0
3. Straps correctly placed? (adherent: yes)	80.4	54.6
4. Nose clips used? (adherent: yes)	96.9	83.5
5. User seal checked? (adherent: yes)	38.1	15.5
6. Removed properly (used straps) (adherent: yes)	80.4	43.3
7. Disposed of respirator (adherent: yes)	78.7	55.3