Hard hat life span may vary depending on the conditions of each work site. Hard hats subjected to more wear and tear or used outdoors in direct sunlight may need to be replaced more frequently. Daily inspections are the best way to determine when to replace a hard hat shell, suspension, or the entire unit. Suggested replacement is based on service life (based on when the hard hat was placed into service, not the manufacture date). As a general guideline we recommend replacing hard hats every five years regardless of outside appearance, but this can vary due to use and job site conditions Each Dax hard hat shell is hand laid giving it a unique, one of a kind appearance Now you can buy Books online in USA,UK, India and more than 100 countries.
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