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Visor

A visor, also spelled vizor, is a protective covering designed to shield the eyes and face from , , , , or impacts, typically consisting of a curved or flat surface attached to headwear such as , caps, or interiors. Originating from the visiere meaning "face" or "appearance," derived from Latin visus ("a look, a seeing"), the term dates to around 1300 and initially referred to the front part of a . In historical contexts, visors were integral to medieval armor, particularly from the onward, where they formed the movable or fixed front piece of helmets like the or to protect the wearer's face during combat while allowing vision through slits or meshes. By the late medieval and periods (roughly 1500–1575), elaborate mask-like visors became a fashionable element in and Austrian plate armor, often embossed with or features for both and . These early visors evolved from simpler or protections to articulated metal plates, addressing vulnerabilities in earlier armor designs by covering the face more securely. In modern applications, visors serve diverse practical purposes across transportation, sports, and daily wear. The automotive sun visor, first introduced in 1924 as an exterior-mounted "glare shield" on the by inventor Hathaway, was designed to block harmful sun rays and later relocated inside the cabin for better accessibility, becoming standard equipment by the 1930s. Sports visors, consisting of a brim attached to a headband without a full crown for ventilation, emerged in the early for activities like , , and running, providing while allowing airflow to prevent overheating—unlike traditional caps with crowns dating back to the . In contemporary sports such as , transparent visors on helmets safeguard eyes from impacts and foreign objects, enhancing player safety since their widespread adoption in the late . Today, visors also appear in fashion and occupational gear, from lightweight s for outdoor activities to protective shields in industrial or settings, reflecting their enduring utility in balancing visibility and defense.

History

Origins in Armor

In medieval armor, a visor refers to a movable or fixed face guard integrated into helmets, designed to protect the wearer's face while allowing limited visibility through slits or perforations. The term "visor" derives from the Old French visiere, meaning "face" or "appearance," from Latin visus ("a look, a seeing"), and was first attested in Middle English around 1300 as a reference to the front part of a helmet. These early visors emerged in the 13th century as part of evolving helmet designs, initially appearing on the great helm—a large, cylindrical or barrel-shaped helmet worn over a mail coif—and later on the bascinet, a lighter skullcap-like helmet that became widespread in the 14th century. By the , visors on typically featured hinged mechanisms that could be raised or lowered, incorporating narrow vision slits to balance facial protection against blows with the need for battlefield awareness. A notable example is the late 14th-century Lyle , a with a detachable "houndskull" visor—characterized by its pointed, dog-like for deflecting strikes—and borders, demonstrating the period's advancements in articulated armor components. Similarly, Italian from around 1400, such as those recovered from Venetian outposts, included visors pivoted to the with slots for sight and breath, underscoring the design's prevalence across . Visored helmets played a critical role in the Hundred Years' War (1337–1453), where they equipped knights and men-at-arms against the era's prevalent threats, including arrows and close-quarters weapons like swords and polearms. The with its visor, often paired with a mail aventail for neck protection, served as the standard headgear for much of the conflict, as seen in French and English forces at battles like in 1415, providing essential face defense without fully encumbering mobility. Toward the war's later phases, the —a successor to the with an integrated, sometimes pivoting visor—emerged, offering enhanced coverage against the increasing use of edged weapons and early firearms. By the late 15th and into the (roughly 1500–1575), visors evolved further in plate armor, particularly in and Austrian designs, where elaborate mask-like forms became fashionable. These often featured embossed or faces for both added protection and psychological intimidation on the . This military innovation in visored designs later influenced civilian headwear adaptations for shading and protection.

Evolution in Headwear

The transition of visors from military protection to civilian sun-shading accessories began in the 19th century, evolving into everyday headwear focused on comfort and utility rather than combat defense. Originating as metal face guards in medieval helmets to safeguard warriors' eyes and faces, the visor concept adapted into softer, non-armored forms for recreational and sporting use. Visors first emerged in civilian headwear during the 1860s through baseball uniforms, when the amateur Brooklyn Excelsiors team adopted wool caps featuring stiff visors to shield players' eyes from sunlight during outdoor games. This design marked a shift toward practical eye protection in sports, with the stiff brim providing essential shade without obstructing peripheral vision. By the early 20th century, key milestones advanced visor construction; in 1903, Spalding Manufacturing introduced the first stitched visors on baseball caps, creating a more durable and standardized feature that extended the brim's lifespan under regular use. Materials also progressed from heavy wool crowns and rigid brims—occasionally reinforced with leather-like stiffeners—to lighter fabric blends, improving breathability and comfort for extended recreational activities. Further innovations in the led to standalone visor hats, detached from full crowns for enhanced ventilation. These emerged in the early 20th century for pursuits and , consisting of a brim secured by a without enclosing the head, allowing air circulation during physical exertion. By the , visors permeated broader trends, particularly influenced by , where lightweight and adjustable designs appealed to both athletes and casual wearers seeking stylish sun protection. This cultural adoption transformed visors from niche sporting gear into versatile accessories, emphasizing portability and adaptability in everyday civilian attire.

Automotive Visors

Invention and Early Adoption

The automotive sun visor emerged in the early 1920s as a practical solution to the challenges of driving amid intense glare, particularly on the unpaved roads common at the time. In , inventor Hathaway developed the first such device, known as a "glare shield," which was mounted externally on the to shield drivers' eyes from direct . This innovation was influenced briefly by shading concepts from headwear visors, adapting them for vehicular use. The design addressed growing concerns over , exacerbated by post-1910s advancements like the widespread adoption of glass windshields and increasing vehicle speeds on dusty, unshaded roadways. Early adoption accelerated with the transition to internal visors for better accessibility and integration. By 1931, began incorporating fabric-covered internal sun visors on select Model A vehicles, such as the Victoria, marking a shift from external mounts to more convenient interior placements using simple metal frames upholstered in fabric. In the late , luxury manufacturer introduced the first pull-down interior visor on its high-end models, allowing drivers to adjust shading more easily without leaving the cabin. These initial materials—primarily stamped metal for structure and basic fabric or leather coverings—prioritized durability and cost-effectiveness over aesthetics. By the 1930s, sun visors had become a standard feature on most U.S.-made automobiles, reflecting their proven role in enhancing driver safety and comfort amid expanding networks and higher travel speeds. Patents from the era, such as those detailing adjustable mechanisms, further refined the basic design for smoother deployment and positioning. This rapid integration underscored the visor's evolution from a accessory to an essential component in .

Design Advancements

Following , automotive sun visor designs began incorporating lighter materials to improve usability and reduce headroom intrusion. In the 1950s, manufacturers like introduced foam cores, such as or early variants, as optional features to replace heavier constructions, enabling slimmer profiles while maintaining structural integrity. By the , functionality expanded with the addition of vanity mirrors on models including the , providing passengers with personal grooming aids integrated into the visor body; illuminated versions, using simple electric bulbs, appeared as premium options to enhance visibility in low light. Material advancements in the focused on and durability, shifting from traditional fabric and coverings over rigid cores to energy-absorbing foams and emerging plastics like for select components, which offered shatter resistance during impacts. These changes aligned with the introduction of Federal Motor Vehicle Safety Standard (FMVSS) No. 201 in 1972, effective for new vehicles from 1973, which mandated that sun visors for front outboard seating positions be constructed of or covered with energy-absorbing material to limit criteria () in crashes. Dual-zone configurations, allowing independent adjustment and positioning for and visors, became more prevalent to customize blocking without compromising the other's view. The 1990s brought further refinements for compatibility with advancing safety systems, particularly airbag deployment. Visor designs were engineered to minimize interference, using flexible hinges and tear-away fabrics to prevent the visor from becoming a or obstructing paths during frontal impacts, as emphasized in NHTSA guidelines for occupant protection. In the 2020s, innovations like Bosch's Virtual Visor represent a shift toward smart technology, employing a driver-facing camera with to detect eye position and a transparent LCD panel that selectively darkens only the glare-affected area, blocking sun rays without obscuring the forward view. This builds on foundational glare shields from the while prioritizing unobtrusive functionality.

Sports Visors

Team Sports Applications

Visors have played a significant role in team sports since the late , primarily aiding players in maintaining visibility under bright conditions while integrating team branding into uniforms. In , extended brims on caps were introduced in the , when the Excelsiors adopted a rounded-top cap with a long peak designed specifically for sun shading during outdoor games. This early design addressed the challenges of daytime play, allowing fielders and batters to track the ball without excessive glare. By the 1920s–1930s, caps were typically constructed from for added durability and structure, fitting seamlessly into team uniforms as a standard accessory. These models evolved in the with the incorporation of panels in the crown and back, enhancing breathability and comfort during extended in hot weather. Modern (MLB) caps feature adjustable designs with embroidered team logos. Design features of sports visors emphasize functionality, such as curved brims that provide shade without obstructing , enabling players to monitor teammates and opponents effectively. Regulations govern visor use to ensure fairness; for instance, the (NCAA) mandates that eye shields remain clear or nearly clear—as of 2025, allowing "nearly clear" options—limiting tint levels to over 90% visible light transmission and preventing any unfair visibility advantages. In , eyeshields—transparent visors attached to helmets—emerged in the to protect against impacts and reduce glare, marking a shift toward integrated head protection. The () initially permitted tinted versions in the and 1990s but banned dark tints in 1998 for safety and visibility concerns among officials; lightly tinted options were reapproved in 2019 through a with Oakley. goalies adopted clear visors on s starting in the , with minor-league players using plastic shields for facial protection while preserving sightlines; this culminated in Plante's landmark 1959 NHL debut of a full protective , influencing team-wide standards. These applications reflect broader advancements in headwear, adapting protective elements from industrial designs to athletic needs.

Individual Sports Uses

In individual sports such as and , visors have long provided essential shading and comfort without restricting movement. Visors for active pursuits including emerged in the early , allowing players to shield their eyes from while maintaining visibility on the course. Early designs incorporated sweatbands to absorb during prolonged outdoor play. In , visors emerged as a in the , offering a lightweight alternative to full hats for players on sun-exposed courts. For cycling and running, clip-on visors gained popularity from the onward, prized for their aerodynamic profile and ability to provide targeted shading without adding bulk. These models, often secured with elastic bands, help prevent sweat from dripping into the eyes during intense efforts like marathons, enhancing focus and endurance for solo athletes. In both disciplines, visors prioritize mobility, with crownless constructions promoting airflow to keep the head cool under exertion. Key design features emphasize functionality for individual use: crownless styles facilitate , while UV-protective coatings block 100% of UVA and UVB rays to safeguard skin and eyes during extended exposure. Brands like introduced ventilated visors in the 1990s, featuring perforations for breathability that became staples in and gear. The evolution of sports visors reflects advancing materials and technologies tailored to solo activities. From simple fabric constructions in the , designs progressed with improved shading innovations, building on developments from team sports, underscoring visors' role in enhancing through lightweight, adaptive protection.

Safety and Protective Visors

Industrial and Welding Contexts

In industrial settings, visors serve as critical components of (PPE) to shield workers from hazards such as flying , , and intense sources. Early designs in the consisted of hand-held shields, often made from basic materials like or metal frames with lenses, providing rudimentary protection during tasks. These shields evolved into full helmets by , with the introduction of green-tinted filters specifically for to attenuate harmful and radiation while allowing visibility of the weld pool. Welding helmets incorporating flip-up visors became standard post-1930s, transitioning from fixed opaque shields to adjustable designs that balanced protection with usability. Materials advanced from and metal in the early 1900s, which offered durability but limited comfort, to impact-resistant plastics like composites by the 1950s, enhancing lightweight protection against impacts and heat. A significant occurred in the with the commercialization of auto-darkening filters () using technology, pioneered by Swedish manufacturer Hornell (Speedglas), which automatically adjusts lens darkness from shade 9-10 in to shades 10-13 during arcs for optimal eye . These visors, typically rated for shades 10-13 in , reduce the risk of arc eye by instantly blocking intense while improving workflow efficiency over manual flip mechanisms. Beyond welding, face shields are essential in construction and machining, where they protect against flying particles and chemical splashes. The Occupational Safety and Health Administration (OSHA) established standards for eye and face protection in the 1970s under 29 CFR 1926.102 for construction, mandating shields that provide side protection and comply with impact resistance requirements to safeguard against hazards like debris from tools or machinery. Modern industrial visors, primarily constructed from polycarbonate since the late 1970s, offer high impact resistance—capable of withstanding drops from 50 inches or high-velocity particles—while remaining lightweight and transparent. The ANSI/ISEA Z87.1 standard, first published in 1968 and updated periodically, governs impact resistance for face shields, requiring them to pass drop-ball and high-velocity tests to ensure no penetration or shattering under industrial stresses. In applications, such as grinding or milling, visors often feature coatings to maintain clear visibility in humid or high-heat environments, preventing that could obscure hazards. These coatings, applied to surfaces, enhance usability without compromising the material's inherent resistance to scratches and impacts.

Medical and Emergency Applications

In medical settings, protective visors, often referred to as face shields, serve as essential (PPE) for healthcare workers, including physicians, nurses, and dentists, to shield the face, eyes, and mucous membranes from splashes, sprays, and droplets of bodily fluids during procedures such as surgeries, examinations, and patient care. These devices provide a transparent barrier that covers a larger facial area than or surgical masks alone, reducing the risk of exposure to infectious pathogens like or other respiratory viruses. Studies have demonstrated their efficacy, with one experiment showing face shields reducing inhalational exposure to influenza aerosols by 96% at 18 inches and 92% at 72 inches from the source. When combined with N95 respirators, they further prevent contamination of the eyes, nose, and mouth, enhancing overall infection control without requiring fit testing or causing significant fogging. In (), visors are critical for and paramedics during high-risk interventions, such as (CPR), trauma assessments, or handling infectious cases in ambulances and accident scenes, where exposure to blood, vomit, or aerosols is common. Their lightweight, adjustable designs allow for quick donning and doffing in fast-paced environments, and they can be easily disinfected between uses, extending the usability of other PPE like . During the , visors were widely adopted in emergency departments as an adjunct or alternative to , though indicates they are less effective against alone and should be paired with respirators for optimal protection. Beyond standard protective uses, specialized visor-like devices have emerged for diagnostic purposes in emergency care. The Cerebrotech Visor, a portable, non-invasive tool cleared by the FDA in , uses low-power radio waves to detect hemispheric bioimpedance asymmetry indicative of ischemic , enabling rapid assessment in under two minutes at the bedside or in ambulances. Clinical trials, such as the VITAL II study, validated its accuracy in identifying large-vessel occlusions, with applications extending to monitoring and traumatic brain injuries in emergency settings. This device supports timely interventions like , potentially improving outcomes in time-sensitive neurological emergencies.

References

  1. [1]
  2. [2]
    VISOR | definition in the Cambridge English Dictionary
    a curved piece of stiff material that is worn above the eyes to give protection from strong light from the sun: Many of the tourists were dressed in shorts ...
  3. [3]
    Visor - Etymology, Origin & Meaning
    c. 1300, viser, "front part of a helmet," from Anglo-French viser, Old French visiere "visor" (13c.), from vis "face, appearance," from Latin visus "a look, ...
  4. [4]
    Internet History Sourcebooks Project
    They became smaller and fit the head better. A visor was also included that made breathing easier as it could be opened. Horses were also included in the armor ...
  5. [5]
    (PDF) Helmets with Mask Visors in Sixteenth Century Germany
    Mask visors were a unique armor style in 16th-century Germany, lasting from 1500 to 1575. Embossing or repoussé techniques defined the craftsmanship of ...
  6. [6]
    [PDF] The Evolution of Armor and Weapons in Medieval Europe
    12 Indeed, many of the aspects of late medieval plate armor, such as the angled visor and the bevor, can be seen to cover the weaknesses of earlier armor models ...
  7. [7]
    Bosch's Smart Visor Tracks the Sun While You Drive - IEEE Spectrum
    Jan 29, 2020 · The automotive sun visor has been around for nearly a century, first affixed in 1924 as a “glare shield” on the outside of a Ford Model T.
  8. [8]
  9. [9]
  10. [10]
    Visor - Definition, Meaning & Synonyms - Vocabulary.com
    A visor is part of the front of a helmet that can usually be raised or lowered. Visors shade your eyes from the sun.<|control11|><|separator|>
  11. [11]
    Visored Bascinet - Western European
    The visored bascinet served as the standard helmet worn throughout Europe from about 1300 to about 1420. The pierced studs along the rim held the aventail.
  12. [12]
    VISOR definition and meaning | Collins English Dictionary
    visor in American English. (ˈvaɪzər ). nounOrigin: ME visere < Anglo-Fr viser < OFr visiere < vis, a face: see visage. 1. a. in armor, a movable part of a ...Missing: etymology | Show results with:etymology
  13. [13]
    The Great Helm - myArmoury.com
    In the early parts of the 14th century, we see a curious development in period art: great helms with moveable, removable, and/or pivoting visors. One of the ...
  14. [14]
    The Lyle bacinet - late 14th century - Royal Armouries
    The Lyle bacinet is a late 14th-century steel helmet with a 'houndskull' visor, brass borders, and a detachable visor. It has a riveted iron aventail.
  15. [15]
    Visor for a Bascinet - Italian - The Metropolitan Museum of Art
    This Italian visor for a bascinet, made of steel, dates to ca. 1400. It was found in Chalcis, and is 6 in. high, 7 in. wide, and 6 1/2 in. deep.
  16. [16]
    The Hundred Years' War 1337-1453 - Royal Armouries
    During the Hundred Years' War, many helmets would have also included a pointed movable visor which would have protected soldiers' faces. The acute points of ...
  17. [17]
    Arms and Armor in Medieval Europe - The Metropolitan Museum of Art
    Oct 1, 2001 · One of the most widely used types of helmet was the Spangenhelm. Body armor was usually either a short-sleeved mail shirt (byrnie), made up of ...
  18. [18]
    National Baseball Hall of Fame - Dressed to the Nines
    1.” The cap, worn by such top-flight amateur clubs as the Brooklyn Excelsiors, Philadelphia Athletics, New York Gothams and New York Mutuals, featured a star ...<|control11|><|separator|>
  19. [19]
    History of the Ballcap - From the Knickerbockers to New Era - Heddels
    May 3, 2018 · A pivotal moment for the ballcap was in 1860, when an amateur club named the Brooklyn Excelsiors donned a ball cap with a longer brim and a ...
  20. [20]
    1920s Tennis Clothes | Womens and Men's Outfits - Vintage Dancer
    Aug 14, 2019 · Headwrap / hair scarf or bucket hats were tennis hats of the day until the visor appeared in the late 1920s. White stockings (should not be ...
  21. [21]
    The 95-Year-Old Car Sun Visor Has Been Completely Reinvented
    Jan 6, 2020 · Back in 1924 a fellow named Hathaway invented the first sun visor, or "glare shield" in his words, which mounted to the outside of a Ford ...
  22. [22]
    what car manufacturer first used sun visors - AACA Forums
    Nov 4, 2011 · Packard was the first automobile manufacturer to offer sun visors if you are referring to the pull down type inside an automobile.
  23. [23]
    [PDF] The History of 1963-1985 Avanti Sun Visors - Nostalgic Motor Cars
    It wasn't until 1959 that General Motors offered sun visors as an optional cost item on the Corvette. They became standard equipment for the 1961 Corvette, but ...
  24. [24]
    1966 Ford Mustang Inside Visor Mirror (Day / Night) - Golden Star Auto
    Golden Star Auto has a quality designed Vanity Mirror for your Ford Mustang at the price you want! CONTACT US. 972-315-3758. sales@goldenstarauto.com. 1800 ...
  25. [25]
    49 CFR 571.201 - Occupant protection in interior impact. - eCFR
    4.1 A sun visor that is constructed of or covered with energy-absorbing material shall be provided for each front outboard designated seating position.
  26. [26]
  27. [27]
    Federal Register, Volume 61 Issue 152 (Tuesday, August 6, 1996)
    Aug 6, 1996 · Possible Sun Visor Labeling Requirement for Vehicles With Smart Passenger-side Air Bags. 6. Leadtime and Costs. E. Manual Cutoff Switch Option ...
  28. [28]
    Bosch's Virtual Visor
    May 18, 2020 · Virtual Visor features a single, transparent LCD panel, a driver-facing camera with AI facial detection and analysis and tracking software.
  29. [29]
    History of Baseball Caps: How a Simple Hat Became Iconic
    Jun 26, 2025 · In the 1860s, the Brooklyn Excelsiors wore a cap designed by a New York sporting goods company called Peck & Snyder. It had a soft crown and ...
  30. [30]
    Streeter Striped Baseball Hat: The Perfect Accessory for Style and ...
    Nov 27, 2023 · In the 1940s and 50s, baseball caps began to evolve further. Caps with mesh panels were introduced, which allowed for better ventilation and ...
  31. [31]
  32. [32]
    14 Types of Baseball Hats: How to Wear a Baseball Hat - MasterClass
    Sep 24, 2021 · Curved brim: With a curved brim cap, the edges of the bill of the hat curve downward to keep the sun out of the wearer's peripheral vision.
  33. [33]
    Plastic Sheet Baseball Cap Visor ABS Black 56" x 27" x 1/12 ... - eBay
    In stock $21.62 deliveryABS Plastic is tough and non-shattering with a haircell pattern front, smooth back, specifically engineered for automotive repairs, hobby, DIY, home repairs, ...
  34. [34]
    Protective Football Headgear and Peripheral Visuomotor Ability in ...
    Apr 8, 2021 · The clear visor allowed for near 90%+ VLT. Currently, the smoke- and mirror-tinted visors are illegal for use during gameplay in all levels of ...
  35. [35]
    Eyeshield - Wikipedia
    An eyeshield, also referred to as a visor, is a piece of gridiron football equipment that was invented in the 1980s.Missing: 1950s 1977
  36. [36]
    NFL allowing players to wear lightly tinted Oakley helmet visors
    Aug 26, 2019 · Tinted visors haven't been commonplace in the NFL since the league instituted the ban on them for safety reasons in 1998.Missing: history | Show results with:history
  37. [37]
    Game changer: How the goalie mask transformed the face of hockey
    Jan 8, 2017 · In the 1950s, minor-hockey goalies began wearing clear-plastic shields. But it wasn't until 1959 that the goalie mask truly arrived. Owners were ...
  38. [38]
    What is Visor Cap - Nantong Foremost Garments & Accessories Co ...
    Nov 28, 2023 · A visor cap, also known as a sun visor or sports visor, is a type of hat that protects the face from the sun.
  39. [39]
    The 5 most iconic tennis fashion accessories - Roland-Garros 2025
    Aug 13, 2018 · This fashion accessory, a throwback to the 1920s, first appeared on the tennis court. A kind of baseball cap without the skull cover, the “visor ...
  40. [40]
    2 Pack Visor Women Men Sun Hat Clip On Visors Adjustable Sport ...
    About this item​​ 2 Pack: Two clip-on visors in one package. Multiple Colour: balck,white,grey,blue,navy,khaki,rose red,green,burgundy. Stylish to wear.
  41. [41]
  42. [42]
    History's Most Influential Sport Sunglasses - Eagle Eyes Optics
    Aug 26, 2019 · When the inaugural Tour de France began in 1903, many of the cyclists adapted military goggles to protect their eyes from the dust and dirt ...
  43. [43]
  44. [44]
    The History of Welding Helmets - Tulsa Welding School
    Aug 6, 2020 · 1930s: The First Welding Helmet Invented. Before the 1930s, most welders used goggles and face masks to protect their faces. However, this kind ...
  45. [45]
    History Of Welding Helmet Evolution - Weldtech UK
    The first welding helmet design was actually tried out in 1905 by Frederick Bowers, later to be the founder of Fibre-Metal.
  46. [46]
    [PDF] spectral-transmissive properties and use of eye-protective glasses
    that glass a distinct yellow-green or greenish- yellow tint as compared with a blue-green for Arc-. Ban, Cescoweld, Filterweld, and Willson-Weld. All of ...
  47. [47]
    The History of the Welding Helmet! | AWS Blog
    Feb 19, 2020 · The first version of the welding helmet as we know it today emerged in 1937, produced by Willson Products. Said to have “exceptional ruggedness to withstand ...
  48. [48]
    A Revolution in the Dark: From Nodding Masks to Automatic Light ...
    Nov 3, 2025 · Key time point: Auto-Darkening (ADF) technology was first commercialized by Swedish companies such as Speedglas in the early 1980s. Core ...
  49. [49]
    Selecting the Right Welding Helmet for You | MillerWelds
    Feb 23, 2010 · Typical weld shade ranges are between shade #8 to #13. When the helmet is in the down position, you will see through a light lens allowing for ...
  50. [50]
  51. [51]
  52. [52]
    [PDF] Impact Protection and Polycarbonate Lenses | Prevent Blindness
    The lenses in all glasses (prescription, sunglasses and fashion eyewear) must meet FDA minimal impact standards established in. 1971. While they do provide some ...
  53. [53]
  54. [54]
    ANSI/ISEA Z87.1-2020: Current Standard for Safety Glasses
    The current, most recent edition of the safety glasses and eye and face protection devices standard is ANSI Z87.1-2020 (ANSI/ISEA Z87.1-2020)
  55. [55]
    OMNIShield™ Clear Face Shield - Antifog - Lincoln Electric
    Anti-fog lens coating enhances visiblity, improves productivity and eliminates fogging frustrations · "Premium impact resistant polycarbonate lens is 90% thicker ...
  56. [56]
    Durable Face Shields | Superior Protection Against ... - MCR Safety
    MCR Safety face shields are made from durable polycarbonate and acetate, providing protection against liquid splashes and flying debris, and meet ANSI/ISEA Z87 ...
  57. [57]
  58. [58]
    Face shields for infection control: A review - PMC - NIH
    Face shields are personal protective equipment devices that are used by many workers (e.g., medical, dental, veterinary) for protection of the facial area ...
  59. [59]
  60. [60]
  61. [61]
    What is the current evidence for the effectiveness of using a visor ...
    While a visor is not as effective as a face mask in terms of protection, it may be utilised as an alternative.
  62. [62]
    510(k) Premarket Notification - FDA
    510(k) Premarket Notification ; K182967 · Visor System · Cerebrotech Medical Systems, Inc. 1048 Serpentine Lane Suite 301. Pleasanton, CA 94566 · Dawnel Scott.
  63. [63]
    Abstract WP51: Portable Stroke Detection In A Comprehensive ...
    Feb 3, 2022 · The Cerebrotech Visor is a portable stroke detection device with the ability to detect alterations in brain bioimpedance in under 2 minutes.
  64. [64]
    Cerebrotech Visor Receives FDA Clearance - BioSpace
    Jan 4, 2018 · The clearance includes a broad indication for use as an aid in the assessment of fluid volume differences between the cerebral hemispheres ...