3M SecureFit Safety Glasses

The 3M SecureFit is built around one core innovation: Pressure-Diffusion Temple (PDT) technology. Conventional safety glasses apply concentrated pressure at two fixed temple points — the classic behind-the-ear squeeze that causes hot spots after two or three hours of continuous wear. The SecureFit's PDT temples self-adjust, distributing pressure over a wider contact area to reduce that fatigue regardless of head width or shape. The result is a single SKU that fits a broader population without requiring workers to try on multiple sizes. Three lens tints, an optional foam gasket that upgrades the standard glasses frame into a dust-and-splash barrier, and a bifocal reader variant round out the line. For maximum comfort on long shifts, compare the Solus 1000 with its sculpted brow guard; for budget volume programs, the Virua AP is the lower-cost alternative.

Key Features

• Pressure-Diffusion Temple (PDT) technology — spring-loaded self-adjusting temples distribute pressure over a larger surface area and conform to a wide range of head sizes; reduces temple fatigue on 8- and 10-hour shifts without individual fitting adjustments.
• Foam gasket option (FM suffix) — the SF401AF-FM, SF402AF-FM, and SF410AS-FM variants include a removable foam gasket that seals around the orbital rim, converting the SecureFit from standard safety glasses to a dust-and-splash resistant configuration; useful in grinding, chemical splash, or dusty environments without switching to a full goggle.
• Bifocal reader option (BF48) — the Clear Bifocal variant incorporates a 1.5× magnification reader in the lower lens zone, enabling detail work (gauge reading, fine assembly, label inspection) without removing safety eyewear.
• Scotchgard Anti-Fog on Clear and Gray — SF401AF and SF402AF carry 3M's Scotchgard inner-lens coating; the Indoor/Outdoor variant (SF410AS) uses an anti-scratch coating optimized for outdoor conditions where UV and grit are the primary threats.
• ANSI/ISEA Z87.1+ rated — high-velocity impact certified across all variants; polycarbonate lenses block 99.9% of UVA/UVB; satisfies OSHA 1910.133 (general industry) and 1926.102 (construction) eye-protection requirements.
• Versatile three-tint line with optional gasket — combining three tints with a gasket upgrade in the same frame reduces inventory complexity; one frame style covers indoor, outdoor, and mixed-light environments with a single procurement decision.

Available Tints & Coatings

Applications

• Manufacturing with mixed workforce — PDT self-adjusting temples eliminate the need for small/medium/large size runs; one SKU fits the full production floor population without individual fitting sessions.
• Construction & outdoor work — Gray anti-fog (SF402AF) handles outdoor sunlight and morning humidity; foam gasket version (SF402AF-FM) adds dust resistance during concrete cutting, grading, or demolition.
• Maintenance & inspection — Clear Bifocal (BF48) allows technicians to read gauges, inspect fasteners, and perform close-up work without switching between prescription reading glasses and safety glasses.
• Chemical & lab environments — Clear with foam gasket (SF401AF-FM) provides a splash-resistant perimeter against light chemical spray or mist; for full immersion splash protection, upgrade to a chemical splash goggle.
• Warehousing & dock operations — Indoor/Outdoor tint (SF410AS) handles the dock door light transition; gasket version (SF410AS-FM) adds wind and dust sealing in exposed outdoor receiving areas.
• Healthcare & food processing — Clear anti-fog with foam gasket creates a hygienic, steam-resistant lens seal during sanitation washdown or sterilization area work where misting is constant.

Compare Within the 3M Line

ANSI Z87.1 Compliance

The 3M SecureFit carries ANSI/ISEA Z87.1+ certification across its lens variants. The "+" designation confirms high-velocity impact testing — a ¼-inch steel ball at 150 feet per second — applied to the complete frame-and-lens assembly, not the lens alone. Polycarbonate lenses inherently exceed the ANSI impact threshold and block 99.9% of UVA/UVB. The foam gasket configuration does not change the ANSI impact rating but adds a physical barrier against dust penetration and light splash — it does not qualify the SecureFit as a chemical splash goggle for OSHA purposes.

OSHA 1910.133 (general industry) and OSHA 1926.102 (construction) require eye and face protection when workers face hazards from flying particles, molten metal, liquid chemicals, acids, or harmful radiation. The SecureFit with standard or foam-gasket configuration satisfies flying-particle and UV requirements under both citations. Environments with severe chemical splash, grinding at close range, or molten metal exposure should be evaluated for goggle or face shield protection in addition to or instead of safety glasses.

Frequently Asked Questions