Frame Details

Manufacturer	Pentax

The Pentax ZT500 Dust Dam brings together high-performance protection and all-day wear comfort for professionals working in demanding, dust-laden environments. Crafted with a sealed “dust dam” design, these safety glasses block airborne particles from entering around the lens-frame interface—perfect for laboratories, factories, construction sites or any high-hazard setting.

Key Features

Superior impact protection: Designed to meet ANSI Z87.1 standards for high-mass and high-velocity impacts.
Dust-sealed construction: The Dust Dam sealing system provides enhanced environmental protection, helping guard against dust, debris, and other fine particulates.
Wrap-style frame: Offers extended side-coverage and a secure fit around the face for better protection and stability.
Non-conductive material: The frame is made of non-conductive plastic, making it safe for use in electrical or mixed-hazard environments.
Removable head strap: Adds secure retention when working in active or movement-intense applications.
Multiple lens options: Compatible with prescription lenses or standard clear protective lenses, accommodating users with vision correction needs.

Ideal For

Industrial and manufacturing facilities where fine dust, grit or airborne particles are a concern
Maintenance, construction or commissioning crews needing a protective yet comfortable eyewear solution
Environments requiring ANSI-certified safety gear with style and fit
Users who require prescription safety eyewear with reliable protective features

Fit & Specs

Size: 58 mm lens width × 18 mm bridge × 131 mm temple length (58-18-131)
Integrated side shields for side-impact and coverage
Lightweight frame with rubberized nose pads & temple tips (depending on variant) for enhanced comfort
Available in multiple color accents (e.g., Blue, Red) in certain markets

Why Choose Pentax ZT500 Dust Dam?

When your work environment demands more than just basic eyewear, the Pentax ZT500 Dust Dam delivers a higher level of protection without compromising on fit or comfort. The sealed frame design keeps out dust and debris, while the ANSI-rated impact resistance provides peace of mind. Its wrap style and optional strap make it ideal where movement, bending or overhead work is common. For professionals who wear prescription lenses, the compatibility ensures you don’t have to sacrifice vision for safety.

FRAME MEASUREMENTS

To ensure your frames fit perfectly, you first have to determine which size frames are best for you. The best place to start is with the measurements on a pair you already own. You know those little numbers on the inside of its temple? That's what you're looking for. The frame measurements appear in the following order: lens width, bridge width, and temple length.

Frame Width

To find frame width, measure the front of the frame from screw to screw

Temple Length

Temple length is the measurement in millimeters of the ‘arms' of the frame. This measurement does not vary as much as the others, with 135mm, 140mm, 145mm, and 150mm being the most common options.

Lens Height and Width

Lens height is the distance from the top of a lens to the bottom. Lens Width is the distance from the left side of a lens to the right side.