Technical Vault: KleenGuard™ Nemesis™ VL Safety Glasses 29111

The KleenGuard™ Nemesis™ VL Safety Glasses 29111 are reusable, non-prescription industrial safety glasses built around a clear anti-fog polycarbonate lens at 89% visible light transmission. This is the indoor configuration of the Nemesis VL platform: frameless construction, gunmetal temples, a soft ventilated nosepiece, and soft-grip temple contact points.

Covered below: product identity, lens properties, anti-fog technology, impact classification, optical characteristics, the fit system, use conditions, cleaning, controlled-environment notes, inspection, storage, and limitations. Selection comes down to the employer's documented hazard assessment and the requirements of the specific work area.

• Manufacturer: Ansell
• Brand: KleenGuard™
• Product family: Nemesis™ VL Safety Glasses
• Manufacturer code: 29111
• SOSCleanroom SKU: 29111
• UPC: 036000291117
• Product type: Reusable, non-prescription industrial safety glasses
• Lens color: Clear
• Lens coating: Anti-fog with scratch-resistant hardcoat
• Anti-fog technology: KleenVision™
• Visible light transmission: 89%
• Lens material: Polycarbonate
• Frame style: Frameless, no-brow design
• Frame and temple color: Gunmetal
• Frame and temple material: Nylon, per legacy SKU-specific manufacturer documentation
• Nosepiece material: Empilon / flexible thermoplastic elastomer, per legacy SKU-specific documentation
• Lens geometry: High-base-curve wraparound design
• Base curve: Base curve 8 in legacy SKU literature; 8.25 in current Ansell family documentation
• Nosepiece: Soft flexible nose pad with ventilation notch
• Temple design: Flexible arms with Comfort Touch soft-grip tips
• Included accessory: Neck cord
• Size: One size
• RightCycle™ eligibility: Yes, subject to current program availability and acceptance requirements
• SOSCleanroom selling quantity: 12 safety glasses per case

Current Ansell documentation lists the Nemesis VL family as manufactured to comply with ANSI/ISEA Z87.1-2020 and as Z87+ high-velocity impact rated. Z87+ applies to high-impact protective eyewear that has met the impact-performance requirements of the standard.

Legacy documentation for code 29111 may cite ANSI Z87.1:2010 along with CE certification to EN 166:2001. Use the current Ansell reference as the principal product-family statement. The legacy references stay useful when reviewing historical certificates, supplier files, or lot documentation.

Fogging starts when warm, moist air meets a cooler lens and condenses into small droplets. Those droplets scatter light, create glare, and bury fine detail, which is usually what prompts a worker to pull the glasses off or keep fussing with them.

The 29111 uses a clear KleenVision™ anti-fog lens treatment to hold back that moisture. Ansell describes KleenVision™ as a premium coating engineered for anti-fog performance 100 times greater than the ANSI Z87.1-2020 “X” mark requirement, and as exceeding the EN 166 “N” mark test for resistance to fogging.

• Clearer vision in humid work environments
• Holds up moving between warm and cool areas
• Manages the fogging that comes with masks, respirators, hoods, and garments
• Cuts down on removing, wiping, and readjusting the glasses
• Better compliance, since the eyewear stays on and stays usable
• Fewer work stoppages over a moisture-obscured lens

Anti-fog performance reduces how often and how long fogging occurs. It does not promise a permanently fog-free lens. Temperature differential, humidity, perspiration, airflow, respirator exhaust, contamination, cleaning technique, coating wear, and chemical exposure all shift the outcome.

• Anti-fog performance does not remove the need for proper fit and ventilation
• When fogging keeps recurring, look at respirator valves, mask fit, hood placement, and airflow direction
• Never apply household anti-fog chemicals unless they are approved for this coating
• Do not polish or scrub the anti-fog surface
• Replace the eyewear once the coating goes damaged, hazy, patchy, or dead
• Stick to approved cleaning methods that keep the coating and clarity intact

The clear lens transmits roughly 89% of visible light. That high-transmission figure is what makes this configuration an indoor lens, suited to work where natural color recognition, inspection accuracy, and plain visibility matter.

Clear lenses distort color far less than any tinted option, which is why they get specified for manufacturing, laboratories, inspection, assembly, maintenance, warehousing, cleanroom-support work, and other tasks under normal indoor lighting.

Polycarbonate is the standard material in industrial safety eyewear because it delivers impact resistance, optical transparency, and ultraviolet filtration at low weight. On top of that base, the Nemesis VL lens adds a scratch-resistant hardcoat and the anti-fog treatment to stretch usable service life.

The Nemesis VL runs an extra-lightweight frameless design with no upper brow frame. Less bulk means less visual obstruction and fewer conflicts with hard-hat suspension systems and other headborne PPE.

• No upper frame in the line of sight
• Better upward peripheral vision
• Less interference with hard-hat suspension components
• Lower-profile fit beneath hoods and head coverings
• Lighter overall for prolonged use
• Broad continuous lens area without a heavy conventional frame

Legacy SKU literature lists a base curve of 8. Current Ansell family documentation says 8.25. Both describe the same high-wrap lens geometry, and the gap reflects documentation precision rather than a different product.

The curved lens reaches around the sides of the face for added peripheral coverage. What that coverage amounts to in practice depends on facial dimensions, fit, eyewear position, head movement, other PPE, and the direction and energy of the hazard.

A soft, flexible nosepiece improves comfort and keeps the eyewear where it belongs. The ventilation notch routes perspiration away from the eyes and cuts moisture buildup at the bridge of the nose.

• Flexible contact surface spreads out pressure
• Ventilation notch keeps air moving around the nose bridge
• Channels perspiration away from the eyes
• Soft contact limits downward slippage
• Low-profile geometry suits extended wear
• Include the nosepiece in routine inspection

Flexible temple arms with Comfort Touch soft-grip tips minimize pressure over a long shift and keep the glasses from sliding. The flex fits a range of head shapes without the pinch of a stiffer temple design.

• Flexible arms accommodate a range of facial and head dimensions
• Soft-grip tips hold position
• Lower contact pressure for longer wear periods
• Low-profile temples improve compatibility with hard hats and hoods
• Check temple position whenever earmuffs or respirators are worn
• The neck cord keeps the glasses close when they come off

• Manufacturing and production operations
• Assembly, inspection, picking, checking, and quality-control tasks
• Laboratory and technical work
• Cleanroom-support and controlled-environment operations
• Construction and facility maintenance
• Oil, gas, petrochemical, and energy operations
• Warehousing, shipping, receiving, and material handling
• Equipment servicing and preventive maintenance
• Humid production environments
• Temperature-variable work areas
• Tasks requiring masks, respirators, hoods, or protective headgear
• Indoor work that needs a clear lens and natural color recognition
• General occupational eye protection where spectacle-style coverage fits the hazard

Evaluate safety glasses as part of the whole PPE system. Hard hats, respirators, face shields, hearing protection, hoods, masks, and garments can shift eyewear position, redirect airflow, create pressure points, or cut into protective coverage.

• Confirm hard-hat suspension does not displace the glasses
• Make sure the temple arms clear tight-fitting respirator seals
• Check for pressure or leakage under earmuff cushions
• Verify masks and respirators are not blowing warm air across the lens
• Confirm compatibility with face-shield brackets and visors
• Check the fit holds during bending, climbing, walking, and equipment operation
• Verify upward and peripheral vision through the full range of movement
• Never force the glasses over prescription eyewear unless that combination has been evaluated

The employer should identify the source, type, direction, frequency, duration, and severity of each eye hazard before selecting eyewear. Spectacle-style protection handles general impact and particle hazards, but it does not enclose the eye area enough for liquid splash, fine dust, aerosols, or multidirectional exposure.

Safety certification and cleanroom suitability are two separate determinations. ANSI impact compliance says nothing about sterility, cleanroom classification, particle release, outgassing, disinfectant compatibility, or aseptic processing.

The 29111 is reusable industrial eyewear, not supplied sterile and not represented as cleanroom-certified. That said, the clear high-transmission lens is the configuration most likely to clear a controlled-area visibility review, since it leaves color discrimination and inspection accuracy intact. Before it goes in, evaluate the glasses against the facility's contamination-control strategy, material-qualification process, gowning SOP, cleaning procedure, area-segregation rules, and environmental-monitoring program.

• Assign eyewear by employee or controlled area where practical
• Stage the glasses on the clean side of the gowning process
• Finish fit adjustments before final glove donning where the SOP allows
• Handle the glasses by the temples, not the lens
• Never set eyewear directly on benches, carts, gowning seats, or critical surfaces
• Do not move eyewear between uncontrolled and controlled areas without approved cleaning
• Use facility-approved cleaning materials and compatible low-lint wipes only
• Check for haze, residue, scratches, coating damage, and trapped contamination
• Define what happens when eyewear is dropped, contaminated, displaced, or fogging repeatedly
• Replace the glasses once they cannot be cleaned to the facility's acceptance criteria

1. Inspect the eyewear before starting the gowning sequence.
2. Clean or disinfect the glasses per the approved facility procedure.
3. Stage the eyewear in the designated clean-side location.
4. Handle the glasses by the temples or other approved contact points.
5. Don the eyewear at the point the gowning SOP specifies.
6. Set the nosepiece and temples before final glove donning where permitted.
7. Confirm the glasses clear the hood, mask, respirator, or face covering.
8. Leave the eyewear alone once inside the critical work area.
9. Follow the defined deviation procedure if the glasses are dropped, displaced, contaminated, or heavily fogged.

1. Wash and dry hands, or don clean gloves, as the work area requires.
2. Check the lens for dust, grit, metal particles, dried residue, or other abrasive contamination.
3. Blow off loose particles with clean air, or rinse gently with water where permitted.
4. Apply an approved optical cleaner, mild soap and water, or another validated solution.
5. Wipe gently with a soft, non-abrasive optical tissue, microfiber cloth, or approved cleanroom wiper.
6. Keep off the pressure. No repeated polishing of the coated lens.
7. Rinse if needed to clear cleaner residue.
8. Dry with a clean, soft, non-abrasive material.
9. Inspect the lens, anti-fog coating, temples, mounting points, nosepiece, and safety markings before reuse.

Inspect the eyewear before each use, and again after any impact, chemical exposure, abnormal heat, or cleaning process that could affect protection or optics. Pull the glasses from service for anything that could compromise fit, clarity, impact performance, or coating function.

• Cracked, chipped, warped, or deformed lens
• Deep scratches or abrasion that interferes with vision
• Persistent haze, clouding, distortion, or discoloration
• Damaged, uneven, peeling, or ineffective anti-fog coating
• Mounting damage or looseness 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 the approved cleaning process cannot remove

Store the glasses in a cool, clean, dry location away from direct sunlight, excessive heat, abrasive materials, heavy objects, and chemical vapors. Keep the coated lens from taking unnecessary contact in storage and transit.

• Use an individual case, sleeve, or designated storage compartment
• Do not store with sharp tools, loose fasteners, metal parts, or abrasives
• Do not set heavy objects on the lens or temples
• Avoid long storage in hot vehicles or near process heat
• Keep away from solvent, adhesive, fuel, and cleaning-chemical vapors
• Keep cleaned eyewear separate from contaminated PPE
• Never let the coated lens rest against a rough surface
• Treat the neck cord as a retention aid, not long-term storage

Ansell lists the Nemesis VL family as eligible for the RightCycle™ Program. Confirm the actual eligibility, collection methods, contamination restrictions, geographic availability, minimum quantities, and accepted product conditions with the active program before any eyewear goes into a recycling stream.

The SOSCleanroom purchase quantity for SKU 29111 is 12 safety glasses per case. Legacy manufacturer logistics documents may reference 12 pairs per inner box with multiple inner boxes per master shipping carton. Do not present the master-carton quantity as the SOSCleanroom customer selling unit unless the active inventory and purchasing record confirms it.

• Not a sealed chemical-splash goggle
• Not dust-tight or gas-tight 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 as sun-glare protection in intense exterior light
• 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 in all conditions

Legacy documentation for SKU 29111 may list base curve 8, ANSI Z87.1:2010, CE EN 166:2001, nylon temple construction, Empilon nosepiece material, 89% visible light transmission, and SKU-specific packaging detail. Current Ansell family literature lists base curve 8.25, ANSI/ISEA Z87.1-2020 compliance, Z87+ high-velocity impact performance, KleenVision™ premium anti-fog performance, and RightCycle™ eligibility. Where certification traceability matters, verify the documentation for the supplied production lot.

KleenGuard™ protective eyewear was previously marketed through Kimberly-Clark Professional, so it may appear under Kimberly-Clark Professional, KleenGuard™, Jackson Safety, or Ansell in historical and current documentation. Product-page content should use the active Ansell portfolio identity while keeping the established KleenGuard™ Nemesis™ VL name and manufacturer code 29111.

This Technical Vault entry supports 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, an exposure-control plan, cleanroom qualification, facility SOP, or regulatory guidance. Verify current certificates, declarations, chemical-compatibility information, and lot-specific documentation where the organization's quality or safety system requires it.

Technical insight: The 29111 is the clear-lens counterpart to the mirrored Nemesis VL, and 89% VLT is the number that decides most orders. It keeps color recognition and inspection accuracy intact under indoor lighting, where a mirror or smoke lens would cost you both. Pair that with the premium anti-fog and the frameless profile and you have the version that survives masks, hoods, and hard hats through a full shift. It gives up all sun-glare control in exchange, so exterior crews need a tinted SKU.

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

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