SWATCOM SC21 Pro Impulse Ear Plugs Get higher noise protection levels by wearing the PRO Impulse with over-ear headsets. Now featuring a new universal fit, these plugs come ready with soft in-ear tips for immediate ‘off the shelf' use. Their compact design ensures Impulse filters remain unobtrusive. Wear them comfortably for extended periods, especially under communications headsets where you need double protection. Originally developed for military users, Impulse filters successfully combat gunfire, artillery noise, and industrial impulses from nail guns, drop hammers, and riveting operations. Notice how our unique filter technology allows airflow while preserving spatial awareness during hunts or combat. Unlike competing products, this ventilation minimises the occlusion effect. Additionally, it reduces ear canal irritation while maximising comfort. Consequently, you'll experience fewer inflammation and infection risks. We rigorously tested Impulse filters against extreme conditions: Humidity immersion cycles Thermal extremes (-40°C to +75°C) 12-hour continuous wear trials Sandstorm exposure Maintenance is simple – just wash regularly with water and normal detergents. Therefore, Impulse fits any environment, indoor or outdoor. Choose custom mould options for constant 15dB SNR attenuation (estimated), suitable for continuous 100dB exposure. For impulse threats, rest assured our ANSI IPIL-certified protection reaches 33.1dB maximum. Important notice: Always conduct an on-site noise assessment before purchase. This ensures you select the precise protection level required for your environment. Learn More： SWATCOM