korvasuojuksia

Korvasuojuksia, commonly known as earmuffs, are devices worn over the ears to provide thermal insulation or noise reduction. They typically consist of a headband that secures two earcups. The earcups are lined with soft material, such as foam or synthetic fur, to create a seal around the ear. This seal helps to trap warm air, providing protection against cold temperatures, and also to block out external sounds.

Earmuffs designed for thermal insulation are often used in cold weather, for activities like skiing, snowboarding, or working outdoors in winter. Their primary function is to prevent heat loss from the ears, which can be particularly susceptible to cold.

Earmuffs designed for noise reduction, often referred to as hearing protection earmuffs or noise-canceling earmuffs, are used in environments with high levels of sound. These are common in industrial settings, construction sites, shooting ranges, and for individuals attending loud concerts or sporting events. They work by physically blocking sound waves from reaching the ear canal. The effectiveness of noise reduction earmuffs is often measured by their Noise Reduction Rating (NRR).

Some earmuffs combine both thermal and noise reduction properties. They can also incorporate features such as built-in headphones for listening to music or communication devices. The design and materials used in earmuffs vary depending on their intended purpose and the desired level of protection or comfort. They are a simple yet effective form of personal protective equipment.