Air filtration system, air filtration device, and air filtration module for use therewith

a technology of air filtration system and air filter module, which is applied in the field of air filtration, can solve the problems that the system generally does not remove volatile organic compounds, and achieve the effect of improving filter and power efficiency

Inactive Publication Date: 2022-02-17
DSS PUREAIR INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The system achieves filtration efficiencies greater than 99.9999% for particles below 300 nm and pathogens, effectively removing VOCs and odors, while maintaining low face velocities and reduced power consumption, outperforming traditional HEPA filters.

Problems solved by technology

Additionally, current HEPA and ULPA filtration systems generally do not remove volatile organic compounds (VOCs), oxides or odors.

Method used

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  • Air filtration system, air filtration device, and air filtration module for use therewith
  • Air filtration system, air filtration device, and air filtration module for use therewith
  • Air filtration system, air filtration device, and air filtration module for use therewith

Examples

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example 1

te Filtration Performance Testing

[0147]The purpose of this testing is to determine the filtration performance of exemplary filtration modules of the disclosure. The EN1822-5 test standard is used to evaluate the filter modules, and to demonstrate that the filter modules have no input air “by-pass” such that seal integrity is maintained so that the air coming out of the filter module is completely filtered and achieves the filtration specification of the system.

[0148]The EN1822-5 test standard evaluates a filters' particle removal efficiency in a size range between 20 nm-300 nm. The reported efficiency from the EN1822-5 testing procedure is given at the lowest measured efficiency value recorded during the challenge. Test conditions and test results are provided in the tables below.[0149]Test Air Flow Rate (LPM): 400[0150]Challenge Aerosol: Aerosolized KCl[0151]Test Conditions Particle Measurement Equipment: TSI 3080 Classifier / TSI 3772 CNC Counter[0152]Test Air Temperature (° F.): 75...

example 2

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[0161]The purpose of this testing is to determine the efficacy of air filtration system (air filtration system including filter module docked in docking base) of the disclosure to remove challenge VOCs. VOC removal testing was performed referencing NRCC-54013 (April 2011): Method for Testing Portable Air Cleaners sections 3.2 and 5.1.2. Testing was conducted for a total of 8 hours.

[0162]Natural system decay for the challenge chemicals is performed prior to the test. The air filtration system of the disclosure was placed in the center of a chamber, which was then sealed and flushed with clean air for a minimum of one night. An additional enclosure fan was operated to ensure air mixing. The challenge chemicals (formaldehyde and toluene) were injected and allowed to circulate for 30 minutes during which an air sample was taken. Each challenge chemical was performed using a fresh filter. The air filtration system was then turned on using the highest fan speed beginning the test timing...

example 3

Bacterial Removal Efficiency

[0177]The purpose of this testing is to determine the efficacy of air filtration system (air filtration system including filter module docked in docking base) of the disclosure to remove viruses and bacteria.

[0178]Viral Filtration Efficiency (VFE) at an Increased Challenge Level

[0179]This test procedure was performed to evaluate the VFE of a filtration system of the disclosure at an increased challenge level. A suspension of θX174 bacteriophage was delivered to the test system at a challenge level of greater than 107 plaque-forming units (PFU) to determine the filtration efficiency. The challenge was aerosolized using a nebulizer and delivered to the test system at a fixed air pressure and flow rate of 150 liters per minute (LPM). The aerosol droplets were generated in a glass aerosol chamber and drawn through the test system into all glass impingers (AGIs) for collection. The challenge was delivered for a 10 minute interval and sampling through the AGIs ...

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Abstract

The present disclosure generally relates to an air filtration system, an air filtration device, and an air filtration module for removing ultra-fine particles (UFPs), pathogens (e.g., viruses, bacteria, etc.), volatile organic compounds (VOCs), oxides or odors. The systems, devices, and filter modules of the disclosure perform at enhanced filter and power efficiencies. An air filtration system is provides that includes a docking base for receiving a removable, portable air filtration device in fluid communication with the docking base. In certain embodiments, the air filtration system further includes the removable, portable air filtration device. The portable air filtration device may optionally include an air filtration module.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a divisional of U.S. patent application Ser. No. 17 / 152,568, filed Jan. 19, 2021, entitled “AIR FILTRATION SYSTEM, AIR FILTRATION DEVICE, AND AIR FILTRATION MODULE FOR USE THEREWITH,” which is a continuation of U.S. patent application Ser. No. 16 / 900,501, filed Jun. 12, 2020, entitled “AIR FILTRATION SYSTEM, AIR FILTRATION DEVICE, AND AIR FILTRATION MODULE FOR USE THEREWITH,” now U.S. Pat. No. 10,926,209, which is a continuation-in-part of U.S. patent application Ser. No. 16 / 895,741, filed Jun. 8, 2020, entitled “AIR FILTRATION SYSTEM, AIR FILTRATION DEVICE, AND AIR FILTRATION MODULE FOR USE THEREWITH,” now U.S. Pat. No. 10,870,076, issued Dec. 22, 2020, and is a continuation-in-part of U.S. Design patent application No. 29 / 737,110, filed Jun. 5, 2020, entitled “AIR FILTRATION SYSTEM,” U.S. Design patent application No. 29 / 737,141, filed Jun. 5, 2020, entitled “AIR FILTRATION STAND,” U.S. Design patent application No. ...

Claims

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Application Information

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Patent Type & AuthorityApplications(United States)
IPC IPC(8): B01D46/00B01D46/42B01D46/52
CPCB01D46/0008B01D46/0032B01D46/0043B01D46/0013B01D2267/60B01D46/4236B01D46/521B01D46/0036B01D46/4245B01D46/10
InventorCAMPBELL, NEIL J.LYNCH, IYAMDELLINGER, STEPHENGRUBE, KRISDITROLIO, MATTHEW
OwnerDSS PUREAIR INC