T440 Mask Vision Field Tester

Mask vision field tester is to evaluate the effective field of vision of full face mask, half face mask or other respirator. Fitting the mask to the dummy head, lighting the lamp in each eye socket of the dummy head, then tracing the curve of shadow on the half sphere part of equipment by apertometer. Measurements of both total field of vision and overlapping field of vision can be made as standard requirements.

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  • Stable struction with easy operation.
  • Dummy head move on guide rail freely.

EN 136 Technical Respiratory protective devices – Full face masks – Requirements, testing, marking


Item Detail
Diameter of half sphere 610 mm
Dummy head 1
Lamp at eye stock 2
Power supply 220V, 50/60 HZ
Dimension 720mm x 720mm x 900mm
Net weight 20 kg


No. Product
2044001 Mask Vision Field Tester

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