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Meant to be used with any ASTI Face Mask.
Although many are happy with only a few layers of protection, these filters provide far more. The multi-layer filter slips into the filter slot of most masks to help maximize your protection from germs, dust, pollutants, and more.
Features 5-layer construction:
Melt-blown fabric is the most important part of a filter. Non-woven fibers act as a physical barrier against microscopic particulates while also providing an electrostatic barrier to stop aerosolized nano-particles.
Spun-bond is a non-woven fabric that filters out larger particles, while providing structure to the inner melt-blown layers.
Activated carbon fabric traps particulates via a process called adsorption, and also serves as an antibacterial and deodorizer.
Usage:PM 2.5 filters can be effective for up to 3 days with continuous use and up to 2 weeks occasional use, or whenever it becomes harder to draw a breath. You cannot wash to clean PM 2.5 Filters and after these advised timelines you should throw them away.
How To Install:Step 1: After washing your hands, take out the product.Step 2: Fold the filter in half lengthwise so it is easier to slip in the slot.Step 3: Slide the PM2.5 filter into the slot, unfold it and make sure it is centered and flat.Filters Specification:Material: Non-woven Cloth, Melt-blown cloth and carbon filter.Dimension: 4.72" x 3.15"