RESPIRATORY FILTRATION DEVICE

摘要

A respiratory filtration device adapted for use with gas masks or respirators for filtering tritiated water vapor from a gas is provided. The inventive device employs novel filter media, which has a fluting pattern in which a series of generally longitudinal ridges or flutes extend along paths having alternating lateral divergences from a generally upstanding axis (e.g., a pattern of substantially parallel wavy flutes) instead of traditional fluted paper filter media having straight parallel fluting (e.g., E Flute paper). The use of this novel filter media favorably impacts upon the tritium capture efficiency of these respiratory filtration devices.