The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 28, 2026
Filed:
Aug. 04, 2023
U.s. Army Combat Capabilities Development Command, Chemical Biological Center, APG, MD (US);
Steven A Yurechko, Port Deposit, MD (US);
The United States of America as Represented by the Secretary of the Army, Washington, DC (US);
Abstract
A method for quantitatively evaluating the protective efficacy of a respiratory protection mask in an environment with a dynamic pollutant concentration, including providing a first air sampling unit and a second air sampling unit both electronically connected to a data acquisition system, obtaining a first pollutant reading of the environment with the dynamic pollutant concentration using the first air sampling unit, obtaining a second pollutant reading of the respiratory protection mask in the environment using the second air sampling unit, and determining a fit factor of the respiratory protection mask using the data acquisition system by dividing the first pollutant reading by the second pollutant reading. The method additionally includes determining a correction factor between the first air sampling unit and the second air sampling unit and applying the correction factor to the second air sampling unit using the data acquisition system.