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Mar 16, 2016 · Face Mask Performance: Are You Protected? March 16, 2016 by John A. Molinari, PhD; Peri Nelson, BS Published reports in the 1960s investigated reported increases in upper respiratory tract infections in dentists from airborne splashes, spatter, and ASTM Mask Protection Standards - Medical Supplies1. BFE (Bacterial Filtration Efficiency): BFE measures how well the medical face mask filters out bacteria when challenged with a bacteria-containing aerosol. ASTM specifies testing with a droplet size of 3.0 microns containing Staph. Aureus (average size 0.6-0.8 microns). In order to be called a medical/surgical mask, a minimum 95% filtration rate is required. Moderate and high protection Guide to Face Mask Selection and UsePressure drop across mask, or resistance to air flow in mmH 2 O/cm2. Greater resistance = better protection but less breathability. Flame Spread Measures the flame spread of the mask material. Fluid resistant = SOURCE: American Society for Testing and Materials Standard specification for performance of materials used in medical face masks.

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Mar 16, 2016 · Face Mask Performance: Are You Protected? March 16, 2016 by John A. Molinari, PhD; Peri Nelson, BS Published reports in the 1960s investigated reported increases in upper respiratory tract infections in dentists from airborne splashes, spatter, and aerosols generated during use of high-speed handpieces.10 Best medical face masks reviews and best sell surgical , bfe 99 percent medical protective maskThe mask is disposable and recommended for one-time use only. There are two boxes with a total of 100 masks inside that are quite affordable and will meet your financial needs. Besides, the surgical mask Bacterial Filtration Efficiency (BFE) is more than 99 percent. The 3-ply medical mask is fluid resistant and equally latex free. 2.ZAAZ Medical - Protective masks and equipment for the , bfe 99 percent medical protective maskProtective masks and equipment for the consumer and medical communities. Protective masks and equipment for the consumer and medical communities. , bfe 99 percent medical protective mask Our respirators are tested to provide filtering of greater than 99.99% (30m³) filtration efficacy. , bfe 99 percent medical protective mask BFE > 95%, Pharmaceutical Quality. KN95 Electrostatic Disposable Mask.

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