Demystifying the ANSI Z87.1+ Safety Standard for Safety Glasses


When it comes to personal protective equipment (PPE), safety glasses play a vital role in safeguarding our eyes from potential hazards in various work environments. To ensure maximum protection, safety glasses are subject to rigorous standards and regulations. One such standard is the ANSI Z87.1+, developed by the American National Standards Institute (ANSI). In this blog post, we will delve into the details of the ANSI Z87.1+ safety standard, shedding light on its significance and what it means for safety glasses.

Understanding ANSI Z87.1+ Safety Standard

The ANSI Z87.1+ safety standard establishes the criteria for designing, testing, and labeling safety glasses and other eye and face protection devices. The "+" symbol indicates that the standard has been updated and improved over time, ensuring increased safety measures compared to previous versions.

Key Requirements of ANSI Z87.1+ Standard

  1. Impact Resistance: Safety glasses must meet specific impact resistance requirements, ensuring they can withstand high-velocity impacts from flying objects, particles, and fragments. This is crucial for protecting the eyes from potential injuries in hazardous environments.

  2. Optical Quality: The standard defines optical quality guidelines, ensuring that safety glasses provide clear and distortion-free vision. This is essential for maintaining visibility and reducing eye strain during extended use.

  3. Coverage: ANSI Z87.1+ outlines the minimum coverage area for safety glasses, ensuring they adequately shield the eyes from all angles. This includes protection from the front, sides, and top, preventing debris or splashes from entering the eye area.

  4. Frame Strength and Durability: Safety glasses must be designed with durable frames that can withstand regular wear and tear. The standard ensures that the frames are capable of maintaining their structural integrity, even in demanding work environments.

  5. Chemical and Radiation Resistance: Certain work environments expose the eyes to chemicals, radiation, or other harmful substances. Safety glasses complying with ANSI Z87.1+ provide adequate resistance against such hazards, offering additional protection beyond basic impact resistance.

Testing and Certification

To adhere to the ANSI Z87.1+ safety standard, safety glasses must undergo rigorous testing procedures conducted by accredited laboratories. These tests evaluate the glasses' impact resistance, optical quality, and other critical parameters. If safety glasses pass these tests, they receive the ANSI Z87.1+ certification, indicating their compliance with the standard's requirements.

The Importance of ANSI Z87.1+ Safety Standard

The ANSI Z87.1+ safety standard plays a vital role in ensuring the quality and reliability of safety glasses. By complying with this standard, manufacturers can confidently produce protective eyewear that meets the needs of various industries and provides the highest level of eye protection.

Wearing safety glasses that meet the ANSI Z87.1+ standard significantly reduces the risk of eye injuries in workplaces such as construction sites, manufacturing facilities, laboratories, and other hazardous environments. They safeguard against potential dangers such as airborne particles, chemical splashes, harmful radiation, and high-velocity impacts.


Protecting our eyes should be a top priority in any work environment where hazards exist. The ANSI Z87.1+ safety standard establishes the benchmark for safety glasses, ensuring they provide adequate protection against potential eye injuries. By selecting safety glasses that meet this standard, individuals can work with confidence, knowing that their eyes are shielded from a wide range of workplace hazards. Always prioritize safety and choose safety glasses that carry the ANSI Z87.1+ certification, providing optimal eye protection and peace of mind.

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