About SensGard - Innovation Rooted in Science, Built for Real Life

SensGard hearing protection began with the work of Dr. Jozef Zwislocki, a world‑renowned auditory scientist and Professor Emeritus at Syracuse University. Early in his career, Dr. Zwislocki worked on a joint project between Harvard University and the U.S. Navy, studying what made certain hearing protection muffs more effective than others. That research sparked an idea that would eventually reshape how hearing protection could work.

In the 1960s, Dr. Zwislocki moved to Syracuse University, where he founded the Institute for Sensory Research—a center dedicated to understanding not only hearing, but all five senses. Building on the theories he developed at Harvard, he continued refining a new approach to noise reduction that didn’t rely on bulky muffs or deep‑insertion earplugs.

Decades later, his breakthrough became reality. In the mid‑2000s, Dr. Zwislocki patented the Zwislocki Ear Muffler (ZEM®), a lightweight acoustic system that reduces harmful noise by redirecting and dissipating sound energy before it reaches the ear. This technology became the foundation of SensGard, created to bring his uniquely effective, non‑electronic hearing protection to everyday users.

Today, SensGard products are trusted by shooters, DIYers, travelers, musicians, and professionals who want powerful protection without the bulk. Our mission is simple: make hearing protection that works better, feels better, and fits effortlessly into your life.

From cutting‑edge science to real‑world comfort, SensGard continues Dr. Zwislocki’s legacy—helping people protect their hearing with smarter, lighter, and more intuitive design.