National Custom Hollow Metal

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The average city dweller or suburbanite is bombarded with a cacophony of sounds each day, and we all do our best to tune them out. Sustained exposure to noise levels greater than 70 dB can cause permanent hearing loss, and we’re routinely exposed to noises of over 100 dB near airports, construction sites, and other high-traffic areas. Excessive noise increases our stress levels, and it can also negatively impact workers’ productivity. But our team at National Custom Hollow Metal is here to help, and we can give you a quote for Sound Safe Sound Transmission Control (STC) doors in two hours or less!

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Individuals who work in airports, factories, and on construction sites are accustomed to wearing hearing protection, but most of us are exposed to dangerous noise levels nearly everywhere we go! The typical city dweller or suburbanite is routinely exposed to noise levels of 50 to 70 decibels (dBA), and levels can reach 110 dBA near construction zones, airports, and highways. Excessive workplace noise has a detrimental effect on worker productivity and accuracy, and sustained exposure to 85 dBA or higher can cause permanent hearing loss.

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