Technical Vault: KleenGuard™ Nemesis™ VL Safety Glasses 20471

The KleenGuard™ Nemesis™ VL Safety Glasses 20471 are reusable, non-prescription industrial safety glasses designed for workers who need brightness reduction, fog-resistant visibility, high-impact eye protection, ultraviolet filtration, wraparound peripheral coverage, and lightweight long-term comfort. This configuration combines a blue-mirror polycarbonate lens, KleenVision™ anti-fog treatment, scratch-resistant hardcoat, frameless no-brow construction, gunmetal temples, a soft ventilated nosepiece, Comfort Touch temple tips, and an included neck cord.

This Technical Vault entry consolidates the product’s identity, protective ratings, lens technologies, mirror treatment, anti-fog performance, fit characteristics, application guidance, cleaning requirements, PPE compatibility, controlled-environment considerations, inspection criteria, storage practices, and use limitations. Final PPE selection must be based on the employer’s documented hazard assessment and confirmation that the lens tint provides adequate visibility for the work area.

• Manufacturer: Ansell
• Brand: KleenGuard™
• Product family: Nemesis™ VL Safety Glasses
• Manufacturer code: 20471
• SOSCleanroom SKU: 20471
• UPC: 036000204711
• GTIN: 10036000204718
• Product type: Reusable, non-prescription industrial safety glasses
• Lens color: Blue mirror
• Lens material: Polycarbonate
• Lens treatment: Blue mirror finish, KleenVision™ anti-fog coating, and scratch-resistant hardcoat
• Polarized: No
• Frame style: Extra-lightweight frameless / no-brow design
• Frame and temple color: Gunmetal
• Lens geometry: High-base-curve wraparound design
• Base curve: 8.25
• Nosepiece: Soft flexible nose pad with ventilation notch
• Temple design: Flexible arms with Comfort Touch soft-grip tips
• Included accessory: Neck cord
• Foam lined: No
• Metal detectable: No
• X-ray detectable: No
• Size: Universal / one size
• Country of origin: Taiwan
• RightCycle™ eligibility: Yes, subject to current program availability and acceptance criteria
• SOSCleanroom selling quantity: 12 safety glasses per case

Current Ansell documentation identifies the Nemesis VL product family as manufactured to comply with ANSI/ISEA Z87.1-2020 and as Z87+ high-velocity impact rated. The Z87+ designation identifies high-impact performance under the applicable spectacle requirements of the standard.

Earlier SKU-specific documentation may reference ANSI Z87.1+ 2010. Current product-page content should use ANSI/ISEA Z87.1-2020 as the principal standard reference while retaining legacy references only when reviewing historical certificates, purchasing files, distributor records, or lot-specific documentation.

The blue-mirror lens incorporates a reflective exterior treatment intended to reduce the amount of intense visible light reaching the wearer’s eyes. This helps manage brightness and glare in outdoor, high-light, and reflective industrial environments.

Common glare sources include pavement, concrete, vehicle surfaces, roofing materials, glass, polished equipment, sheet metal, water, loading areas, and sunlit exterior structures. The mirror finish can improve visual comfort under bright conditions, but the lens is not polarized and should not be represented as providing directional glare filtration equivalent to polarized eyewear.

• Helps reduce brightness in outdoor and high-light work areas
• Helps limit glare from reflective industrial surfaces
• Provides a darker viewing condition than clear safety eyewear
• Offers a reflective blue exterior appearance
• Combines glare reduction with anti-fog and scratch-resistant performance
• Supports outdoor and transitional work when available lighting remains adequate

Mirror coatings and polarized filters address glare differently. A mirror coating reflects a portion of incoming visible light and reduces overall brightness. A polarized filter selectively reduces strongly oriented reflected glare from surfaces such as water, pavement, glass, and metal.

Lens fogging occurs when warm, moisture-containing air contacts a cooler lens and condenses into microscopic droplets. These droplets scatter light, reduce contrast, obscure fine detail, and can encourage workers to remove or repeatedly adjust their safety glasses.

The Nemesis VL 20471 uses KleenVision™ premium anti-fog technology intended to reduce the accumulation of vision-obscuring moisture. Ansell states that KleenVision™ is engineered to provide anti-fog performance 100 times greater than the ANSI Z87.1-2020 “X” mark requirement and exceeds the EN 166 “N” fog-resistance test.

• Helps maintain clearer vision in humid environments
• Supports visibility during temperature transitions
• Helps manage fogging associated with masks, respirators, hoods, and face coverings
• Can reduce repeated eyewear removal, wiping, and adjustment
• Supports more consistent use of required eye protection
• Helps limit task interruptions caused by condensation on the lens

Anti-fog treatment reduces the likelihood and duration of fogging but does not guarantee completely fog-free performance under every condition. Results can be affected by temperature difference, humidity, physical exertion, airflow, respirator exhaust, contamination, cleaning technique, coating wear, and chemical exposure.

• Do not assume anti-fog treatment eliminates the need for proper fit and airflow management
• Check mask position, respirator valves, hood fit, and airflow direction when repeated fogging occurs
• Do not apply household anti-fog chemicals unless validated for the coated lens
• Do not aggressively polish or scrub the anti-fog surface
• Replace the glasses if the coating becomes damaged, hazy, uneven, or ineffective
• Use only approved cleaning materials and procedures

The 20471 lens combines several performance functions in one polycarbonate structure. Each treatment addresses a different workplace requirement and should be maintained through appropriate cleaning, handling, and storage.

Polycarbonate is widely used in industrial safety eyewear because it combines low weight, impact performance, optical transparency, and ultraviolet filtration. Its low mass supports prolonged use and helps reduce pressure compared with heavier lens materials.

Polycarbonate can still be damaged by deep abrasion, incompatible solvents, excessive heat, impact, and improper storage. The scratch-resistant hardcoat improves durability but does not make the lens scratch-proof.

The Nemesis VL uses an extra-lightweight frameless design that removes the conventional upper brow frame found on many safety spectacles. The resulting low-profile construction helps reduce visual obstruction, minimize eyewear weight, and limit interference with hard-hat suspension systems and other headborne PPE.

• Reduces upper-frame visual obstruction
• Supports improved upward peripheral vision
• Helps reduce interference with hard-hat suspension components
• Provides a lower-profile fit beneath hoods and head coverings
• Reduces overall product weight for extended wear
• Provides a broad viewing area without a heavy conventional frame

The 8.25 base-curve lens follows the general contours of the face and extends around the sides of the eyes. This high-wrap geometry provides broader peripheral coverage than a flatter conventional spectacle lens.

Actual coverage depends on the wearer’s facial dimensions, lens position, temple fit, nosepiece contact, head movement, compatibility with other PPE, and the direction and energy of the workplace hazard. Wraparound spectacles should not be treated as sealed goggles.

The Nemesis VL uses a soft, flexible nosepiece intended to improve contact comfort, help maintain eyewear position, and reduce concentrated pressure on the nose. A ventilation notch helps direct perspiration away from the eyes and supports airflow around the nose bridge.

• Soft contact surface helps reduce pressure points
• Flexible design accommodates a range of facial profiles
• Ventilation notch supports perspiration management
• Anti-slide contact helps limit downward eyewear movement
• Low-profile construction supports extended use
• Nosepiece condition should be included in pre-use inspection

Flexible temple arms with Comfort Touch soft-grip tips help minimize contact pressure and keep the glasses securely positioned. Temple flexibility supports fit across a range of head dimensions while reducing rigid pressure during extended use.

• Flexible temples adapt to a range of head shapes
• Soft-grip tips help maintain stable positioning
• Reduced contact pressure supports prolonged wear
• Low-profile temples can improve compatibility with hard hats and hoods
• Temple position should be evaluated when earmuffs or respirators are worn
• Included neck cord helps retain the glasses when temporarily removed

Blue-mirror lenses reduce incoming visible light and therefore require a lighting assessment before use. A lens suitable for bright exterior work may reduce visibility in shaded spaces, warehouses, vehicle interiors, stairwells, tunnels, process areas, or nighttime operations.

• Confirm adequate task illumination before approving the lens
• Evaluate all indoor and outdoor transition points
• Confirm that colors, labels, signals, alarms, and inspection details remain visible
• Do not use for nighttime work unless specifically approved by the site hazard assessment
• Provide a clear-lens alternative where workers enter dimly lit areas
• Evaluate glare conditions separately from basic impact-protection requirements

• Outdoor manufacturing and production operations
• Construction and exterior site inspection
• Facility and exterior building maintenance
• Oil, gas, petrochemical, and energy operations
• Warehousing, loading docks, shipping yards, and material handling
• Transportation, fleet, railway, and roadway work
• Utility installation, inspection, and maintenance
• Equipment operation and servicing
• Work around pavement, vehicles, glass, roofing, polished metal, and reflective equipment
• Humid or temperature-variable work environments
• Tasks requiring masks, respirators, hoods, or protective headgear
• General industrial eye protection where the mirror tint is appropriate for available lighting

Safety glasses should be evaluated as part of the complete PPE system. Hard hats, respirators, face shields, hearing protection, masks, hoods, and protective garments can alter eyewear position, redirect warm air, reduce protective coverage, or create pressure points.

• Confirm that hard-hat suspension systems do not displace the glasses
• Ensure temple arms do not interfere with tight-fitting respirator seals
• Check for leakage or pressure beneath earmuff cushions
• Verify that masks and respirators do not direct excessive warm air toward the lens
• Confirm compatibility with face-shield brackets and visors
• Ensure secure fit during bending, climbing, walking, and equipment operation
• Verify upward and peripheral vision through the required range of movement
• Do not force the glasses over prescription eyewear unless the combination has been evaluated

The employer should identify the source, direction, frequency, duration, and severity of each eye hazard before selecting protective eyewear. Spectacle-style protection may be suitable for general impact and particle hazards but may not provide sufficient enclosure for chemical splash, fine dust, aerosols, or multidirectional exposure.

Safety certification and cleanroom suitability are separate determinations. ANSI impact compliance does not establish sterility, cleanroom classification, low particle release, low outgassing, disinfectant compatibility, or suitability for aseptic processing.

The Nemesis VL 20471 is reusable industrial safety eyewear and is not supplied sterile or represented as cleanroom-certified. The blue-mirror lens may also be unsuitable for controlled areas where high visible-light transmission, color discrimination, inspection accuracy, or low-reflectance eyewear is required.

• Evaluate the eyewear under the facility’s contamination-control strategy before use
• Confirm that the mirror tint does not interfere with inspection or color-recognition tasks
• Assign eyewear by employee or controlled area when practical
• Handle the glasses by the temples rather than the lens
• Complete fit adjustments before entering the critical work zone
• Do not place eyewear directly on benches, carts, gowning seats, or critical surfaces
• Do not transfer eyewear between uncontrolled and controlled areas without approved cleaning
• Use only facility-approved cleaners and compatible low-lint wipes
• Inspect for haze, residue, mirror damage, coating damage, scratches, and retained contamination
• Replace the glasses when they no longer meet the facility’s cleanliness or visibility criteria

1. Wash and dry hands or don clean gloves as required by the work area.
2. Inspect the lens for dust, grit, metal particles, dried residue, or abrasive contamination.
3. Remove loose particles using clean air or a gentle water rinse when permitted.
4. Apply an approved optical cleaner, mild soap and water, or another validated cleaning solution.
5. Wipe gently using a soft, non-abrasive optical tissue, microfiber cloth, or approved cleanroom wiper.
6. Avoid aggressive pressure, repeated polishing, or circular scrubbing of the mirror and anti-fog coatings.
7. Rinse where required to remove cleaner residue.
8. Dry using a clean, soft, non-abrasive material.
9. Inspect the lens, mirror surface, anti-fog coating, temples, mounting points, nosepiece, cord, and safety markings before reuse.

Inspect the eyewear before each use and after any impact, chemical exposure, abnormal heat exposure, or cleaning process that may affect protection or optical performance. Remove the glasses from service when any condition could reduce fit, clarity, impact performance, mirror integrity, or anti-fog function.

• Cracked, chipped, warped, or deformed lens
• Deep scratches or abrasion that interferes with vision
• Persistent haze, clouding, distortion, or discoloration
• Peeling, flaking, uneven, or visibly damaged mirror treatment
• Damaged, ineffective, or irregular anti-fog coating
• Lens looseness or damage at the temple attachment points
• Loose, cracked, bent, or deformed temples
• Damaged, missing, or permanently deformed nosepiece
• Loss of secure fit during normal movement
• Illegible required safety markings
• Exposure to a significant impact event
• Chemical contact that may have degraded the lens or frame components
• Residue that cannot be removed using the approved cleaning process

Store the glasses in a cool, clean, and dry location away from direct sunlight, excessive heat, abrasive materials, heavy objects, and chemical vapors. The mirror and anti-fog surfaces should be protected from unnecessary contact during storage and transportation.

• Use an individual protective case, sleeve, or designated storage compartment
• Do not store with sharp tools, loose fasteners, metal parts, or abrasive materials
• Do not place heavy objects on the lens or temples
• Avoid prolonged storage in hot vehicles or near process heat
• Keep away from solvent, adhesive, fuel, and cleaning-chemical vapors
• Store cleaned eyewear separately from contaminated PPE
• Do not allow the coated lens to rest directly against rough surfaces
• Use the neck cord as a retention aid rather than the primary long-term storage method

Ansell lists the Nemesis VL product family as eligible for the RightCycle™ Program. Actual eligibility, contamination restrictions, collection methods, geographic availability, minimum quantities, and accepted product conditions should be confirmed with the active program before the glasses are placed into a recycling stream.

The SOSCleanroom purchase quantity for SKU 20471 is 12 safety glasses per case. Manufacturer or distributor logistics records may reference larger master cartons containing multiple inner cases. The larger master-carton quantity should not be presented as the customer selling unit unless confirmed by the active SOSCleanroom inventory and purchasing record.

• Not a sealed chemical-splash goggle
• Not dust-tight or gas-tight eyewear
• Not polarized eyewear
• Not welding, cutting, brazing, or infrared-radiation protection
• Not laser-protective eyewear
• Not electrical arc-flash or electrically insulating protection
• Not intended for molten-metal splash
• Not intended for nighttime work or poorly illuminated areas
• Not supplied sterile
• Not represented as autoclavable
• Not represented as cleanroom-certified or low-shedding eyewear
• Not a substitute for a face shield where full-face protection is required
• Not designed as over-the-glasses eyewear for prescription spectacles
• Not guaranteed compatible with every respirator, hard hat, hood, mask, or hearing protector
• Anti-fog performance does not guarantee completely fog-free vision under every condition
• Mirror coating does not provide the same directional glare reduction as a polarized filter

Legacy SKU-specific documentation may identify ANSI Z87.1+ 2010, gunmetal frame components, universal sizing, Taiwan origin, SKU-specific packaging, and additional logistics information. Current Ansell Nemesis VL documentation identifies ANSI/ISEA Z87.1-2020 compliance, Z87+ high-velocity impact performance, 8.25 base-curve construction, KleenVision™ premium anti-fog performance, 99.9% UVA/UVB/UVC filtration, neck-cord inclusion, and RightCycle™ eligibility. Where certification traceability is required, verify the documentation applicable to the supplied production lot.

KleenGuard™ protective eyewear was historically marketed through Kimberly-Clark Professional and may appear under Kimberly-Clark Professional, KleenGuard™, Jackson Safety, or Ansell in historical and current documentation. Current product-page content should use the active Ansell portfolio identity while preserving the established KleenGuard™ Nemesis™ VL name and manufacturer code 20471.

This Technical Vault entry is intended to support product evaluation, procurement, training, controlled-environment planning, and workplace PPE review. It does not replace the manufacturer’s instructions, current product markings, a workplace hazard assessment, exposure-control plan, cleanroom qualification, facility SOP, or regulatory guidance. Verify current certificates, declarations, chemical-compatibility information, and lot-specific documentation when required by the organization’s quality or safety system.

Technical insight: The Nemesis VL 20471 is strongest where blue-mirror brightness reduction, premium anti-fog performance, scratch resistance, lightweight frameless comfort, upward and peripheral visibility, Z87+ impact protection, ultraviolet filtration, and compatibility with hard hats, masks, respirators, or hoods must work together.

Technical Vault updated: Jul. 2026 (SOS Technical Staff)

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