The Minivent respirator

The effect of gender and respirator brand on the association of respirator fit with facial dimensions.

This study examined the association of facial dimensions with respirator fit considering the effect of gender and respirator brand. Forty-one subjects (20 white females and 21 white males) participated in the study. Each subject was measured for 12 facial dimensions using anthropometric sliding and spreading calipers and a steel measuring tape. Three quantitative fit tests were conducted with t...

The first few hours off a respirator.

Predictable oxygen concentrations with the Bird respirator.

IN 1964, Fairley and Britt investigated the adequacy of the air-mix control of ventilators operated from an oxygen source. 1 The mean inspired oxygen percentages were measured at various cycling pressures, and with the Bird Mark 7 ventilator the oxygen levels varied from 51.5 to 96.8 per cent, being highest at low flows and at high cycling pressures. Consequently, these authors recommended that...

Modeling the Interface Between a Respirator and the Human Face

Respirator Donning in Post-Hurricane New Orleans

We evaluated correctness of N95 filtering facepiece respirator donning by the public in post-hurricane New Orleans, where respirators were recommended for mold remediation. We randomly selected, interviewed, and observed 538 participants, using multiple logistic regression for analysis. Only 129 (24%) participants demonstrated proper donning. Errors included nose clip not tightened (71%) and st...