Matthew R Ditrolio

US Patent:

20170189727, Jul 6, 2017

Filed:

Jun 4, 2015

Appl. No.:

15/316376

Inventors:

- Boone NC, US
Iyam Lynch - Boone NC, US
Bradley G. Johnson - Boone NC, US
J. Sid Clements - Boone NC, US
Chengjie Li - Shenzhen City, CN
Dahua Xiao - Shenzhen City, CN
Matthew Ditrolio - West Bridgewater MA, US

International Classification:

A62B 7/10
A62B 23/02
A62B 18/08
A62B 9/00
A62B 18/02

Abstract:

Implementations described and claimed herein provide systems and methods systems and methods for removing ultra-fine particles from air. In one implementation, a low power air purifying respirator is configured for filtering ultra-fine particles using a primary filter having a composite filter media, which may be pleated and may provide no outgassing. The respirator includes at least one fan providing positive pressure air flow to the primary filter at a low face velocity. The at least one fan may comprise a plurality of serially stacked, axial fans configured to increase air pressure without increasing flow. One or more safety valves are disposed along the air flow path to prevent back flow and carbon dioxide buildup during use. A user device may be in communication with a controller in the respirator to control the operations of the respirator. The respirator may be connected to a mask via a hose.