No Noise Sign - Prohibition Symbol for Quiet Zones & Sound Control #3217581 (License: Personal Use)

This circular prohibition sign features bold black uppercase text “NOISE” overlaid with a red diagonal slash inside a red ring, following ISO safety signage standards. The design ensures high visibility and immediate comprehension, making it suitable for indoor and outdoor use where noise control is critical. Printed by SmartSign, it includes product code IS-1302 and contact details at the base.

Commonly used in libraries, hospitals, schools, offices, and residential quiet hours zones to indicate mandatory silence; matches user intent for purchasing or downloading signage to enforce noise policies.