A close-fitting seal between a gas mask and the contours of a person's face and head is
essential to keep unwanted chemicals from being inhaled. The interface pressure must be very
light, or the wearer will reject the mask as uncomfortable. The size, shape, and contours of
individual faces vary over a significant range, and there is the added complexity of facial and
scalp hair. Measurement of sealing pressure of candidate designs is accomplished with
paper-thin, flexible sensors that fit between the mask and skin without disrupting the fit.
The sensors have high sensitivity and cover a distance both along the seal and across it with an
array of active elements so pressure distribution can be mapped. I-Scan software provides
vivid displays and facilitates comparisons between designs and during simulated operating
conditions. With the help of Tekscan’s highly qualified sales and engineering support team,
each system may be configured to meet your specific needs.
Left: Pressure mapping images of eight sensor placements around the mask from
forehead to chin (not a complete circumference).
Several low pressure areas are evident in the sealing line of the mask.
Applications
Design verification testing
Reliability testing
R&D for new designs
Benefits
Identify and troubleshoot leaks
Improve design
Compare performance on different size/shape heads
Typical sensors used in this application
Visit our Sensor Catalog to browse our sensors.
