Technical Vault: KleenGuard™ V10 UniSpec™ II Visitor Safety Glasses 25646
The KleenGuard™ V10 UniSpec™ II Visitor Safety Glasses 25646 are economical, non-prescription over-the-glasses safety spectacles designed for visitors, contractors, temporary personnel, trainees, auditors, maintenance staff, and other users who need occupational eye protection while retaining most conventional prescription eyewear.
The UniSpec II platform combines a clear polycarbonate lens, transparent temples, metal-free screw-less construction, an integrated brow, integral nose-contact surfaces, and a comparatively flat 4-base-curve geometry. This configuration creates more internal clearance than strongly curved sport-style safety glasses and helps the protector fit over many prescription frames without requiring the wearer to remove corrective eyewear.
SKU 25646 is documented as the clear, scratch-resistant uncoated configuration. It should not be confused with a separately cataloged hardcoated variant or represented as having a documented anti-fog coating. The product remains open spectacle-style eyewear and must be selected according to the employer’s hazard assessment, wearer-specific OTG fit, lighting conditions, and compatibility with the complete PPE ensemble.
Technical summary: Economical OTG visitor safety eyewear with a clear scratch-resistant uncoated polycarbonate lens, transparent metal-free frame, screw-less hinges, integrated brow, integral nose pads, 4-base-curve over-spec geometry, 99.9% UVA/UVB/UVC filtration, ANSI/ISEA Z87.1-2020 compliance, Z87+ high-velocity impact performance, CSA Z94.3:20 certification, universal sizing, RightCycle™ eligibility, and an SOSCleanroom selling quantity of 50 safety glasses.
Product Identification:
- Manufacturer: Ansell
- Brand: KleenGuard™
- Series: V10 UniSpec™ II
- Product designation: UniSpec™ II Visitor Safety Glasses
- Manufacturer code: 25646
- SOSCleanroom SKU: 25646
- UPC: 036000256468
- Legacy GTIN: 10036000256465
- Product type: Non-prescription over-the-glasses occupational safety spectacles
- Program type: Visitor, contractor, temporary-worker, training, maintenance, support-personnel, and general industrial eye protection
- Fit category: One size / universal adult fit
- Prescription-eyewear compatibility: Designed to fit over most conventional prescription glasses
- Lens color: Clear
- Lens material: Polycarbonate
- Catalog lens-treatment designation: Uncoated
- Manufacturer durability designation: Scratch resistant, uncoated
- Documented anti-fog treatment: No
- Polarized: No
- Photochromic: No
- Automatically darkening: No
- Mirror treatment: No
- Welding-filter shade: No
- Specialized infrared filter: No
- Laser optical-density rating: No
- Frame color: Clear
- Temple color: Clear
- Frame construction: Metal-free
- Hinge construction: Screw-less
- Frame style: Three-piece over-spec spectacle design
- Integrated brow: Yes
- Nose contact: Integral to the lens structure
- Base curve: 4
- Side coverage: Integrated lateral spectacle coverage
- Ultraviolet filtration: 99.9% UVA, UVB, and UVC
- Current U.S. standard: ANSI/ISEA Z87.1-2020
- Impact designation: Z87+ high-velocity impact rated
- Canadian certification: CSA Z94.3:20
- Legacy standard wording: ANSI Z87.1+, ANSI Z87.1-2010, or earlier CSA terminology may appear in historical records
- RightCycle™ eligibility: Yes, subject to current program requirements
- SOSCleanroom selling quantity: 50 safety glasses per case
- Manufacturer-listed industries: Manufacturing, Construction, and Oil and Gas
Clear Scratch-Resistant Uncoated Lens
Manufacturer documentation describes the UniSpec II lens treatment as scratch resistant and uncoated. This wording indicates basic resistance to ordinary handling abrasion while preserving the product’s uncoated classification.
Scratch resistant does not mean scratch-proof. Abrasive particles, rough wiping materials, improper storage, chemical attack, and contact with tools or prescription frames can still damage the lens and reduce optical clarity.
| Lens Attribute |
SKU 25646 Classification |
| Lens tint |
Clear |
| Catalog treatment |
Uncoated |
| Manufacturer durability wording |
Scratch resistant |
| Documented anti-fog coating |
No |
| Polarization |
No |
| Primary visual environment |
Normally illuminated indoor and general-purpose work |
Catalog wording recommendation: Use “clear scratch-resistant uncoated polycarbonate lens.” Do not describe SKU 25646 as anti-fog, polarized, photochromic, automatically darkening, premium hardcoated, or scratch-proof.
Over-the-Glasses Design
The UniSpec II is designed to fit over most conventional prescription glasses. The outer protector creates a second protective lens and frame around the prescription eyewear while allowing the wearer to retain required vision correction.
| OTG Design Feature |
Operational Function |
| 4-base-curve geometry |
Provides greater internal clearance than strongly curved sport-style eyewear |
| Integrated brow |
Helps the outer protector rest above prescription glasses and reduce excessive upper openings |
| Wide protective lens |
Accommodates many conventional prescription-frame shapes and lens heights |
| Integrated lateral coverage |
Extends spectacle protection toward the sides without removable side shields |
| Clear temples |
Reduce opaque obstruction and support indoor visibility |
OTG compatibility is not universal. Prescription frames vary in width, height, bridge geometry, temple thickness, lens curvature, and decorative features. The outer safety lens must not press against the prescription lenses or force the corrective frame out of its normal position.
4-Base-Curve Geometry
A 4-base-curve frame is comparatively flat relative to high-wrap 8-, 9-, or 10-base-curve sport-style safety glasses. This lower curvature creates the interior depth and width needed to fit over many prescription frames.
- Provides increased clearance for prescription lenses and frames
- Supports use over many conventional adult prescription spectacles
- Helps reduce contact between the protective lens and prescription lenses when correctly fitted
- Maintains integrated lateral spectacle coverage
- Creates more physical bulk than low-profile safety glasses
- Requires wearer-specific assessment for gaps and stability
- Does not create sealed splash, dust, aerosol, or gas protection
Integrated Brow Design
The integrated brow rests above compatible prescription frames and helps stabilize the outer protector. It can also reduce excessive openings at the top of the eyewear when the complete assembly fits correctly.
- Supports consistent outer-lens height
- Helps stabilize the OTG protector over prescription eyewear
- Can reduce excessive upper gaps on compatible facial profiles
- Adds structural rigidity to the outer frame
- Must not press the prescription frame painfully against the face
- Does not create a sealed upper barrier against liquids, dust, aerosols, or gases
Metal-Free and Screw-Less Construction
The frame uses metal-free construction with screw-less hinges. This eliminates conventional metallic hinge screws and reduces the number of separate hardware components in the assembly.
| Construction Feature |
Operational Effect |
| Metal-free frame |
Eliminates conventional metallic frame hardware |
| Screw-less hinges |
Eliminates small hinge screws that could loosen or separate |
| Three-piece construction |
Supports economical issue, inspection, and replacement |
| Clear structural components |
Help reduce opaque obstruction around the visual field |
Important distinction: Metal-free construction does not establish electrical insulation, dielectric certification, arc-flash protection, MRI compatibility, metal detectability, X-ray detectability, or suitability for every food-processing application.
Integral Nose-Contact Surfaces
The nose-contact surfaces are integral to the lens and frame structure. This eliminates separate adjustable nose-pad hardware and supports the metal-free, low-component design.
- Reduces separate components that could loosen or detach
- Supports rapid issue without individual nose-pad adjustment
- Maintains simple and economical construction
- Requires verification of bridge comfort and correct lens height
- Must be evaluated with the bridge geometry of the underlying prescription frame
- Eyewear that slides, tilts, or creates excessive gaps should be replaced with another OTG model
Standards and Certifications
Current Ansell documentation identifies the UniSpec II platform as manufactured to comply with ANSI/ISEA Z87.1-2020, rated Z87+ for high-velocity impact, and certified to CSA Z94.3:20.
| Standard or Rating |
Technical Meaning |
| ANSI/ISEA Z87.1-2020 |
Current U.S. occupational eye and face protection standard referenced by the manufacturer |
| Z87+ |
High-impact designation under the applicable spectacle requirements |
| CSA Z94.3:20 |
Current Canadian occupational eye and face protector certification listed by Ansell |
| 99.9% UVA / UVB / UVC filtration |
Polycarbonate filtration intended to reduce occupational ultraviolet exposure |
Impact-Rating Interpretation
The Z87+ designation addresses high-impact spectacle performance under the applicable standard. It does not make the UniSpec II appropriate for every eye and face hazard.
- High-impact performance does not make the product a chemical-splash goggle
- Integrated side coverage does not make the eyewear dust-tight or gas-tight
- The open upper and lower edges permit environmental entry
- A compatible face shield may be required in addition to primary eye protection
- Hazardous fine dust, aerosols, and multidirectional particles may require goggles
- Welding, cutting, brazing, and torch work require task-specific filters
- Laser work requires wavelength-specific optical-density protection
- Damaged eyewear must be removed from service regardless of its original rating
Ultraviolet-Filtration Interpretation
The clear polycarbonate lens filters 99.9% of UVA, UVB, and UVC radiation while retaining clear visible-light transmission. This supports general occupational UV-exposure reduction without a dark tint.
- UV filtration does not make the lens a welding filter
- UV filtration does not establish infrared-radiation protection
- The product is not laser-protective eyewear
- The lens has no wavelength-specific optical-density rating
- Clear UV filtration does not provide sunglass-style glare reduction
- Task-specific radiation hazards require appropriately rated and marked filters
Clear Lens and Indoor Visibility
The clear lens and transparent temples help preserve available indoor light and natural color recognition. This supports use in normally illuminated production areas, warehouses, visitor routes, maintenance spaces, laboratories, inspection-support zones, and contractor orientation programs.
- Supports reading signs, labels, gauges, screens, and process indicators
- Supports natural color recognition
- Preserves indoor task illumination
- Supports visitor tours and contractor orientation
- Reduces opaque obstruction through clear temple components
- Does not provide sunglass-style brightness reduction
- Does not provide polarized reflected-glare control
- May require a tinted alternative for sustained bright outdoor work
Fogging Risk in OTG Use
SKU 25646 does not include a documented anti-fog treatment. Fogging may occur on the outer safety lens, the prescription lenses, or both when warm, moisture-containing air contacts cooler surfaces.
OTG use creates two lens layers on each side of the face and can restrict airflow around the prescription frame. Masks, respirators, hoods, high humidity, temperature transitions, and physical exertion may increase condensation risk.
| Operating Condition |
Selection Consideration |
| Short visitor walkthrough in stable indoor conditions |
The uncoated model may be appropriate when condensation is unlikely |
| Mask or respirator use |
Check airflow around both the safety and prescription lenses |
| High humidity or temperature transitions |
Evaluate an OTG protector with documented anti-fog performance |
| Repeated removal or wiping |
Change the eyewear configuration rather than permitting repeated adjustment |
Do not apply improvised household anti-fog products. Unvalidated sprays, waxes, detergent films, or wipes may leave residue, damage polycarbonate, affect the wearer’s prescription-lens coatings, or create optical distortion.
OTG Fit Verification Procedure
- Inspect the prescription eyewear and UniSpec II protector for damage or contamination.
- Place the UniSpec II over the prescription frame without excessively spreading the outer temples.
- Confirm that the prescription glasses remain in their normal position.
- Verify that the outer safety lens does not contact the prescription lenses.
- Confirm that the integrated brow rests securely without excessive forehead pressure.
- Verify that both eyes remain centered behind the protective lens area.
- Inspect the side, upper, and lower edges for excessive openings.
- Ask the wearer to look upward, downward, and from side to side.
- Ask the wearer to walk, turn, bend, and perform representative movements.
- Confirm that neither frame shifts, tilts, slides, or creates painful pressure.
- Repeat the assessment with required masks, respirators, hard hats, hoods, earmuffs, and face shields.
- Issue another OTG design when the prescription frame is too large or the combined assembly is unstable.
Visitor and Contractor Program Deployment
- Identify the visitor’s route and applicable eye hazards.
- Confirm that open spectacle-style protection is appropriate.
- Determine whether the visitor must retain prescription eyewear.
- Inspect the UniSpec II protector before issue.
- Show the wearer how to position the outer protector without displacing the prescription frame.
- Complete the OTG fit-verification procedure.
- Confirm compatibility with all other required visitor PPE.
- Replace the protector when coverage, comfort, stability, or visibility is unacceptable.
- Provide instructions for return, cleaning, disposal, or recycling.
- Separate returned eyewear from cleaned or unused stock.
Recommended Users and Applications
- Visitors who wear conventional prescription glasses
- Contractors and service personnel
- Temporary employees and trainees
- Auditors and facility-tour participants
- Manufacturing and warehouse support personnel
- Receiving, shipping, and distribution operations
- Construction and maintenance visitor programs
- Oil and gas orientation or support areas
- Laboratory observation areas without splash hazards
- Controlled-area access where open OTG glasses are permitted by SOP
- Emergency replacement stock for general OTG spectacle protection
PPE Compatibility Assessment
The combined prescription frame and OTG protector create greater temple thickness and overall profile than a single pair of safety glasses. The complete assembly must be evaluated with every required PPE component.
- Ensure neither set of temples crosses a tight-fitting respirator sealing surface
- Check whether masks direct warm air toward either lens layer
- Verify that hard-hat suspension components do not displace the OTG protector
- Confirm that earmuff cushions remain fully seated around both temple sets
- Check compatibility with hoods, bouffants, and other head coverings
- Verify that face-shield brackets do not contact or displace the outer protector
- Confirm secure positioning during walking, bending, and representative work movement
- Issue another protector where frame stacking creates pressure, gaps, instability, or fogging
Hazard Assessment Guidance
| Hazard or Condition |
Selection Consideration |
| General flying particles and impact |
Confirm that Z87+ spectacle protection and wearer-specific coverage are adequate |
| Chemical splash |
Use chemical-splash goggles or another appropriately enclosed protector |
| Fine dust or aerosol |
Evaluate goggles or another protector with greater enclosure |
| Full-face impact or splash |
Add a compatible face shield while retaining required primary eye protection |
| Welding, cutting, or brazing radiation |
Use task-specific filters with the required shade designation |
| Laser radiation |
Use wavelength-specific laser eyewear with verified optical density |
| High humidity or temperature transitions |
Evaluate an OTG protector with documented anti-fog performance |
| Sustained bright outdoor work |
Evaluate an appropriately tinted OTG safety protector |
Controlled Environment Considerations
Industrial eye-protection certification and metal-free construction do not establish sterility, ISO cleanroom classification, low particle release, low outgassing, disinfectant compatibility, or suitability for aseptic processing.
OTG use creates additional surfaces, contact points, and frame interfaces around the wearer’s prescription glasses. Facilities should evaluate both eyewear assemblies under the site SOP, gowning sequence, contamination-control strategy, cleaning procedure, and material restrictions.
- Confirm that open OTG safety glasses are permitted in the applicable area
- Use sealed, sterile, or otherwise validated goggles where required by SOP
- Evaluate whether personal prescription glasses are permitted in the controlled zone
- Control or clean both the prescription frame and outer safety protector
- Assign one UniSpec II protector per visitor or user when practical
- Stage cleaned eyewear on the designated clean side of the gowning process
- Handle the outer protector by the temples rather than the lens
- Complete all frame positioning before entering the critical work zone
- Do not place either pair directly on benches, carts, gowning seats, or critical surfaces
- Use only facility-approved cleaners and compatible low-lint wipes when reuse is permitted
- Replace the protector when scratched, contaminated, distorted, unstable, or repeatedly fogged
- Do not describe the product as sterile, autoclavable, or cleanroom certified
Controlled-Area Donning and Handling
- Inspect the prescription glasses and outer protector before beginning the gowning sequence.
- Clean or disinfect each permitted eyewear component according to the approved procedure.
- Inspect the lens edges, integrated brow, nose contact, temples, and hinge interfaces.
- Stage the protector in the designated clean-side location.
- Handle the outer protector only by approved contact points such as the temples.
- Don the prescription glasses and outer protector at the gowning steps specified by SOP.
- Confirm that neither frame displaces the other.
- Verify compatibility with masks, hoods, bouffants, respirators, and face shields.
- Avoid touching or readjusting either frame inside the critical work area.
- Follow the facility deviation procedure if either pair is dropped, contaminated, displaced, or fogged.
Cleaning Procedure
- Remove the outer protector from the prescription eyewear before cleaning.
- Wash and dry hands or don clean gloves as required by the work area.
- Inspect the protector for loose dust, grit, dried residue, or abrasive contamination.
- Remove loose particles using clean air or a gentle water rinse when permitted.
- Apply mild soap and water, an approved optical cleaner, or another validated cleaning solution.
- Wipe gently using a soft optical tissue, microfiber cloth, or approved low-lint wiper.
- Clean the brow, nose contact, temples, lens edges, and screw-less hinge interfaces.
- Avoid excessive pressure and abrasive wiping.
- Rinse where required to remove cleaner residue.
- Dry using a clean, soft, non-abrasive material.
- Inspect the complete protector and safety markings before reuse.
- Clean the prescription eyewear according to its separate manufacturer and facility requirements.
Chemical compatibility note: Strong solvents, aggressive disinfectants, high-pH cleaners, abrasive compounds, and incompatible chemicals may craze or cloud polycarbonate, embrittle structural components, weaken screw-less hinge interfaces, or reduce optical clarity. Prescription-lens coatings may have different compatibility limits from the UniSpec II protector. Validate each cleaning chemical, concentration, contact time, application method, rinse procedure, and cleaning frequency.
Inspection and Replacement Criteria
Inspect the UniSpec II before each issue and after any impact, chemical contact, abnormal heat exposure, or cleaning process that could affect protection or visibility.
- Cracked, chipped, warped, or deformed lens
- Deep scratches or abrasion that interferes with vision
- Persistent haze, clouding, optical distortion, or discoloration
- Crazing, stress cracking, or chemical attack
- Cracked, loose, stretched, or deformed temples
- Damaged screw-less hinge interfaces
- Broken, cracked, or deformed integrated brow
- Damaged integral nose-contact surfaces
- Loss of secure fit over the wearer’s prescription frame
- Contact between the safety lens and prescription lenses
- Excessive side, upper, or lower openings
- Illegible required safety markings
- Exposure to a significant impact event
- Residue that cannot be removed through the approved cleaning process
- Recurring fogging that prevents safe movement or task performance
Reuse, Shared Use and Hygiene
The product may be used as limited-reuse visitor eyewear where site procedures permit. Shared use requires documented inspection and cleaning between wearers.
- Do not reissue visibly contaminated eyewear
- Clean all wearer-contact surfaces between users
- Separate cleaned eyewear from returned or used products
- Use clearly marked clean and used collection containers
- Replace products that cannot be effectively cleaned
- Consider single-user assignment where hygiene or contamination risk is elevated
- Follow facility infection-control and contamination-control requirements
Storage and Handling
Store unused or cleaned protectors in a cool, clean, and dry location away from excessive heat, direct sunlight, abrasive materials, heavy objects, and chemical vapors.
- Use a clean dispenser, cabinet, bin, sleeve, or designated storage compartment
- Separate clean eyewear from returned or contaminated products
- Do not store with sharp tools, fasteners, or abrasive materials
- Do not place heavy objects on the lens, brow, or temples
- Avoid prolonged storage in hot vehicles or near process heat
- Keep away from solvent, adhesive, fuel, and chemical vapors
- Do not allow the lens to rest directly against rough surfaces
- Do not compress or flatten the frame during storage
RightCycle™ Program Consideration
Ansell identifies the UniSpec II family as eligible for the RightCycle™ Program. Actual eligibility, geographic availability, contamination restrictions, collection procedures, minimum quantities, and accepted product conditions should be confirmed with the current program before placing used eyewear into a recycling stream.
Packaging and Selling Unit Clarification
The SOSCleanroom purchase quantity for SKU 25646 is 50 safety glasses per case. Manufacturer and distributor records may describe this quantity as 50 pairs per package, box, or case. The active SOSCleanroom inventory and purchasing configuration should control customer-facing unit-of-sale terminology.
Important Use Limitations
- Designed to fit over most conventional prescription glasses, not every prescription frame
- OTG compatibility depends on frame dimensions, wearer facial geometry, and correct positioning
- Does not include a documented anti-fog treatment
- Both the safety and prescription lenses may fog
- Scratch resistant does not mean scratch-proof
- Not a sealed chemical-splash goggle
- Not dust-tight or gas-tight eyewear
- Integrated side coverage does not create a sealed enclosure
- Not polarized, photochromic, mirror coated, or automatically darkening
- Not welding, cutting, brazing, or specialized infrared-radiation protection
- Not laser-protective eyewear
- Metal-free construction does not establish electrical insulation
- Not electrical arc-flash protective equipment
- Not intended for molten-metal splash
- Not supplied sterile
- Not represented as autoclavable
- Not represented as cleanroom certified or low shedding
- Not a substitute for a face shield where full-face protection is required
- Universal sizing does not guarantee acceptable fit for every wearer
Current and Legacy Documentation Note
Historical records may identify this product under Kimberly-Clark Professional, Jackson Safety, KleenGuard™ V10 UniSpec™ II, Uni-Spec II, manufacturer code 25646, clear uncoated, scratch resistant, clear frame, over-spec, OTG, metal-free, screw-less, integrated brow, 4 base curve, ANSI Z87.1+, ANSI Z87.1-2010, or CSA terminology. Current Ansell documentation identifies metal-free screw-less construction, an integrated brow, integral nose pads, 4-base-curve OTG geometry, clear temples, polycarbonate lenses, scratch-resistant uncoated treatment, 99.9% UVA/UVB/UVC filtration, ANSI/ISEA Z87.1-2020 compliance, Z87+ high-velocity impact performance, CSA Z94.3:20 certification, one-size fit, and RightCycle™ eligibility. Where formal coating, certification, material, or procurement traceability is required, verify the markings and documentation applicable to the supplied production lot.
Brand and Product Documentation Note
KleenGuard™ protective eyewear was historically marketed through Kimberly-Clark Professional and may appear under Kimberly-Clark Professional, Jackson Safety, KleenGuard™, or Ansell in current and legacy documentation. Current product-page content should use the active Ansell portfolio identity while preserving the established KleenGuard™ V10 UniSpec™ II name and manufacturer code 25646.
Technical Vault Disclaimer
This Technical Vault entry is intended to support product evaluation, visitor-program planning, procurement, training, OTG fit assessment, controlled-environment review, and workplace PPE selection. It does not replace the manufacturer’s instructions, current product markings, wearer-specific fit verification, workplace hazard assessment, visitor-management procedure, prescription-eyewear requirements, contamination-control plan, facility SOP, or regulatory guidance. Verify current certificates, lens treatment, material compatibility, packaging, and lot-specific documentation where required by the organization’s safety or quality system.
Technical insight: The UniSpec II 25646 is strongest where economical bulk issue, clear indoor visibility, prescription-eyewear accommodation, metal-free screw-less construction, integrated-brow stability, current Z87+ impact performance, CSA certification, and ultraviolet filtration must work together. Its principal limitations are the uncoated lens, open spectacle geometry, added OTG bulk, increased fogging potential, and the need to verify fit with each wearer’s prescription frame and complete PPE ensemble.
Technical Vault updated: Jul. 2026 (SOS Technical Staff)
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