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Mask Visual Field Tester
BACK
Standards:
Applications:
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
Product Information:
The Mask Visual Field Tester is designed to evaluate whether the field of vision under a mask meets standard requirements. It ensures that respirators, protective masks, and daily-use masks provide adequate visibility for safe and effective use. The instrument is widely used for quality control, R&D, and certification testing of mask products.
Standards:
GB 2890-2009 Respiratory protection Self-priming filter gas mask 6.8 Field of vision
GB 2626-2019 Respiratory protective products Self-priming filter anti-particulate respirator 6.10 Field of vision
GB/T 32610-2016 Technical specifications for daily protective masks 6.12 Field of vision
Key Specification:
| Item | Specification |
|---|---|
| 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 |
Key Features:
(1)Hemispherical surface of visual field(Including holder)
(2)Standard head mold (install electric beads and control switch)
(3)Spherical projection of field of vision
(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
Accessories
(1) Standard head mold with electric bead installation
(2) Field of vision hemispherical surface holder
(3) Control switch module for head mold movement
(4) Power cable
(5) Operation manual
(6) Calibration certificate
FAQ
1. What is this product?
The Mask Visual Field Tester evaluates the visual field under masks, ensuring that respirators, protective masks, and daily-use masks provide adequate left, right, and overall visibility for safe and effective use.
2. What is it used for?
It is used to assess the field of vision for medical masks, industrial respirators, self-priming filter gas masks, and daily protective masks. It ensures compliance with regulatory and standard requirements for visual safety.
3. How does it work?
A mask is mounted on a standard head mold with adjustable pupillary distance. The instrument projects a spherical visual field using electric beads and a hemispherical surface to measure left, right, and overall vision angles. Data are recorded and compared against GB 2890. GB 2626. and GB/T 32610 standards.
4. Why is it important?
Adequate field of vision is critical for safe operation in medical, industrial, and consumer applications. Insufficient visibility can increase risk of accidents or improper use. Objective measurement ensures mask designs maintain both protection and visual safety.
5. Which industries use it?
Widely used in respiratory protection manufacturing, medical mask production, occupational safety, consumer mask quality control, research & development, and certification laboratories to verify visual field compliance.
