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Fit testing is a requirement of the AS/NZS standard. There are two types of tests. A quantitative test measures the amount of particulates inside the

Asbestos is a proven human carcinogen, and all forms of asbestos can cause cancer – Ministry of Health. Asbestos was widely used in commercial and

Filters need to be changed regularly to continue to maintain protection levels. Breathing resistance increases as particulate filters fill up. If you’re turning blue, it

Respiratory filter types used as part of an “Air Purifying Respiratory System” should only be used when there is at least 19.5% oxygen in the