Kõrvakaitsed
Kõrvakaitsed, also known as ear defenders or earmuffs, are devices designed to protect the wearer's hearing from loud noises. They work by creating a seal around the ear, reducing the amount of sound that reaches the eardrum. This is achieved through the use of earcups filled with sound-absorbing material, often foam, which are held in place by a headband.
These protective devices are crucial in environments where noise levels can cause temporary or permanent hearing
Kõrvakaitsed are rated by their Noise Reduction Rating (NRR) or Sound Attenuation Index (SAI), which indicates