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Mask Visual Field Tester

Application

The Mask Visual Field Tester is applicable to field-of-vision evaluation across the following industries and products:

(1) Respiratory Protection Industry: self-priming filter gas masks, anti-particulate respirators — evaluation of left, right, and overall field of vision

(2) Medical and Healthcare Industry: surgical masks, medical protective masks — verification of field of vision for safe usage

(3) Occupational Safety Industry: industrial and dust masks — ensuring visual range compliance for workers in high-risk environments

(4) Daily Protective Masks: general consumer masks — assessment of visual comfort and safety

(5) Research and Development: development of new mask models, optimization of visual field design

(6) Quality Control Laboratories: testing and verification of mask products against standard field-of-vision requirements

Standards

The instrument is compliant with the following standards:

(1) GB 2890-2009 – Respiratory protection — Self-priming filter gas mask, Section 6.8: Field of vision

(2) GB 2626-2019 – Respiratory protective products — Self-priming filter anti-particulate respirator, Section 6.10: Field of vision

(3) GB/T 32610-2016 – Technical specifications for daily protective masks, Section 6.12: Field of vision

Features

(1) Hemispherical surface of visual field, including holder, accurately measures left and right vision angles

(2) Standard head mold equipped with electric beads and control switch

(3) Spherical projection of field of vision for precise measurement

(4) Head mold can move left and right to simulate real-life mask usage

(5) Compact and portable design suitable for laboratory or production floor testing

(6) Provides objective verification of visual field compliance for respirators and masks

Technical Parameters

ItemSpecification
Perimetry Semicircle Radius 305 mm
Left and Right Field of Vision ≤120°
Pupillary Distance 62.5 mm
Head Mold Movable left and right
Instrument Dimensions 800 × 500 × 750 mm
Weight 30 kg


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