| 摘要 |
A protective head gear for a user having an outer panel, an inner panel, a retention pleat on the inner panel, a respirator, and an indexed fastener. The outer panel is disposed relative to the inner panel to provide efficacious spatial separation therebetween. The fastener is formed to adjustably and releasably secure at least a portion of the inner panel to the user. An indexing element is attached to the fastener, and is formed of material substantially tactilely different from the fastener, the outer panel, or the inner panel, to permit the user to unambiguously locate the point of fastening. The outer panel, inner panel, and respirator, can be composed of fabrics having one or more layer, and one layer can have a repellent characteristic different from another (e.g., hydrophobic vs. hydrophilic). |
