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National Safety Mirror

FAQ/Safety Mirror FAQ

Safety Mirror FAQ

Start here for sizing, indoor/outdoor selection, viewing distance, glare, and basic care.

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selectionHow do I choose the right safety mirror for my needs?
Start with three factors: where the mirror will be used, how far away people need to see, and what blind spot you need to eliminate. Driveways, blind bends, and vehicle entrances usually call for a convex traffic or driveway mirror. Indoor intersections and broad surveillance areas are often better served by dome mirrors. Once the application is clear, size the mirror by viewing distance and choose lens and backing materials based on weather, impact, and vandalism risk.
comparisonWhat is the difference between a security mirror and a traffic mirror?
A security mirror is generally used indoors to monitor aisles, corners, blind spots, and retail or facility activity. A traffic mirror is built for outdoor vehicle and pedestrian visibility at driveways, road junctions, parking lots, and blind approaches. Traffic mirrors typically use outdoor-rated backing and are sized for longer viewing distances.
sizingWhat size safety mirror do I need for my application?
Start with about 1 inch of mirror diameter per 1 foot of viewing distance. For a viewing distance of 30 feet, start with a 30-inch mirror or the next available larger size. Confirm mounting height, vehicle speed, lighting and obstructions before ordering.
usageCan safety mirrors be used both indoors and outdoors?
Match the lens and backing to the location. Mirrors with no backing or treated hardboard backing are intended for indoor use. They may be used in covered areas only where they stay dry. For wet or very humid locations, choose galvanized steel (GB) or heavy-duty plastic (PB) backing.
installationHow do I avoid glare or sunlight issues when installing safety mirrors?
Mount the mirror so it shows the traffic or pedestrian approach without reflecting low sun directly into a driver's eyes. Install slightly off axis from the strongest light source, then use the bracket adjustment to refine the angle until the reflected image is clear but not blinding.
specificationsWhat is the typical viewing angle of a convex safety mirror?
Convex mirrors provide a wide field of view, commonly around 160 to 180 degrees depending on curvature and size. They are intended to reveal approaching vehicles, people, or equipment around blind spots, not to provide a flat distance-accurate reflection.
maintenanceHow should I clean and maintain safety mirrors?
Use a soft non-abrasive cloth with mild soap and water or a cleaner approved for plastic mirror lenses. Avoid harsh solvents and scouring pads, especially on acrylic and polycarbonate. Outdoor mirrors should be inspected periodically for dust, salt, insects, and debris that can reduce visibility.