ASTM Level 3 Mask 4-Ply – Medical Masks

Integrum Medical Masks ASTM Level 3 Mask 4-Ply Integrum Medical Masks Product Features 4 Layers Of Protection Conforms to ASTM Level 3 Standards Comfortable Design - prevents dust and fits to face Bacteria Filter Efficiency - 99% Elastic Straps - ensures comfortable and tight fit Disposable - for single use 50 count/box Integrum Medical Masks’ meet ASTM Level 3 testing standards, which means they are the highest level disposable surgical masks available. Typically used in a medical or dental setting, these masks are made of 4 layers of nonwoven melt-blown materials that melt instead of catch fire like regular paper when exposed to heat. In addition, these masks must meet a high level of fluid resistance and also bacterial and particulate filtration. Per ASTM test standards, masks are not tested with viruses but are expected to filter the same amount of viruses that are the same size as bacteria and particulates.