Copyright National Air Filtration Association 2006 Rev. 2 Hospital & Healthcare Facilities.
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Transcript of Copyright National Air Filtration Association 2006 Rev. 2 Hospital & Healthcare Facilities.
Copyright National Air Filtration Association2006 Rev. 2
Hospital & Healthcare Facilities
Copyright National Air Filtration Association2006 Rev. 2
Estimated Deaths – Hospital Acquired Infections
90,000 per yearAnd Costs
$4.5 Billion Per Year
Source: Centers for Disease Control and Prevention
Copyright National Air Filtration Association2006 Rev. 2
Airborne Contaminants Found In Healthcare Facilities
That are transmitted through the
airborne infectious droplet route
Copyright National Air Filtration Association2006 Rev. 2
Bacteria/Virus/Fungi
Bacteria – one-cell organisms that multiple by cell division
Virus – multiply by entering a host cell, using the cell’s DNA to manufacture clones of themselves
Fungi – multiply through the formation of spores that separate from the parent
Copyright National Air Filtration Association2006 Rev. 2
Sources of Contaminants in Healthcare Environment
Copyright National Air Filtration Association2006 Rev. 2
AIA Filtration For Hospitals*Area Designation No. Filter Bank Filter Bank
filter beds #1 #2
All areas for inpatient care, 2 MERV 6 - 30% MERV 15 - 90% treatment and diagnosis, and those areas providing directservice or clean supplies such as sterile and clean processing, etc.
Protective Environment rooms 2 MERV 6 - 30% 99.97% (MERV 17)
Laboratories 1 MERV 14 - 80% -
Adm, bulk storage, soiled holding 1 MERV 6 - 30% -Areas, food preparation areas andLaundries
*Guideline for Design and Construction of Hospital and Healthcare Facilities – Table 7.3
Copyright National Air Filtration Association2006 Rev. 2
Mini-pleat V-Cell
Copyright National Air Filtration Association2006 Rev. 2
History of HEPA Filters
HighEfficiencyParticulateAir
filter
Copyright National Air Filtration Association2006 Rev. 2
To Be A HEPA Filter
“Throwaway extended-medium dry-type filter in rigid frame having minimum particle-collection efficiency of 99.97% (that is a maximum particle penetration of of 0.03%) for 0.3 µm particles of thermally-generated DOP particles or specified alternative aerosol.”
--IEST
Copyright National Air Filtration Association2006 Rev. 2
Background on HEPA Filters
Copyright National Air Filtration Association2006 Rev. 2
•HEPA filters should be factory tested to assure the minimum efficiency 99.97% on 0.3 micrometer particles
•Personnel installing/replacing should be trained in proper installation – proper personal protection
•In-place challenging for integrity is highly recommended
HEPA Filter Testing
Copyright National Air Filtration Association2006 Rev. 2
2 Years in Service
Copyright National Air Filtration Association2006 Rev. 2
HEPA Filter Integrity Testing
In-Place Integrity
(full media scan)
Also includes joints, frames, ceiling, gaskets and other seals
Copyright National Air Filtration Association2006 Rev. 2
Biological Safety Cabinets
Copyright National Air Filtration Association2006 Rev. 2
Ultraviolet Germicidal Irradiation
Copyright National Air Filtration Association2006 Rev. 2
Chemicals and Other
Ethylene Oxide Aldehydes Waste Anesthetic Gases Surgical Smoke Latex - Protein on Powdered Particulate Antineoplastic Drugs
Copyright National Air Filtration Association2006 Rev. 2
Gaseous Contaminant Removal Principle Methods
Physical – Adsorption Activated carbons
Chemical - Chemisorption Chemically treated
activated carbons Potassium permanganate
impregnated media
Copyright National Air Filtration Association2006 Rev. 2
Proposed Standard
ASHE/ASHRAE Standard 170P
Copyright National Air Filtration Association2006 Rev. 2
SUMMARY
Good Predictive Maintenance Good Housekeeping Listening – Observing – Following
ASHE/ASHRAE and AIA Guidelines Use of higher efficiency filters and Integrity
Testing in-situ of HEPA Filters Using gas-phase filtration for chemicals &
odors
Copyright National Air Filtration Association2006 Rev. 2
Cleaner Air = Safer Environment
