Healthcare Design - November 2020 - 63
IN FO C U S
S T R A T E G I C A P P R O A C H E S to D E S I G N C H A L L E N G E S
MECHANICAL VENTILATION SYSTEMS are one of
the primary means of controlling airborne infection in the hospital environment. During
the COVID-19 pandemic, many healthcare organizations have updated or retrofitted their
HVAC systems to minimize the recirculation
of contaminated air in hospital air distribution systems to keep patients, staff, and visitors safe.
While the industry continues to learn
more about the means of transmission of the
COVID-19 virus, this topic is sure to stay top of
mind for months to come. This means design
and facilities engineers will need to work in
concert to ensure that modified hospital building systems are able to perform effectively to
minimize risk.
F I L T R AT I O N B A S I C S
O P E R AT I O N S A N D FA C I L I T Y M A N A G E M E N T
DAVID SENIOR
AIR TIME
Updated filtration approaches to engineering systems can play a
big role in preventing COVID-19 infection in healthcare settings
By Gary Hamilton
Design parameters for mechanical ventilation
systems, such as air change rate, outside air
quality, outside air quantity, and filtration effectiveness, are important in minimizing airborne
infection. The goals of these systems are to replace contaminated air with clean air, minimize
the mixing of dirty and clean air, and inactivate
or kill microorganisms.
The ANSI/ASHRAE/ASHE Standard 170-
2017 defines filtration requirements by a Minimum Efficiency Reporting Value (MERV )
from 1 to 16: the higher the rating, the better
the filter is at trapping specific types of particles. For example, ANSI/ASHRAE/ASHE
Standard 170-2017, Ventilation of Health Care
Facilities, mandates a minimum filtration requirement of MERV 13 or MERV 14 for critical
spaces such as operating rooms, inpatient and
ambulatory diagnostic and therapeutic radiology, inpatient delivery and recovery spaces,
and airborne infection isolation (AII) rooms. A
MERV 14 unit will filter particle sizes between
3 to 10 microns, such as mold spores, legionella,
and cement dust. However, these filters aren't
effective in removing viruses, which can vary
in size from 0.02 to 0.25 micron, from the air
stream of a hospital HVAC system.
A High Efficiency Particulate
Air (HEPA) filter, a type of pleated mechanical air filter, is better
at capturing very small particles
NOVEMBER 2020
63
Healthcare Design - November 2020
Table of Contents for the Digital Edition of Healthcare Design - November 2020
Healthcare Design - November 2020
Editorial
Show Talk
Photo Tour
Touching Base
First Look: De Paul Treatment Centers
Rising to Meet the Covid-19 Challenge
Hcd Virtual Preview
Community Beacon
Burst of Creativity
Island Charm
Operations and Facility Management Air Time
Product Spotlight Lighting
The Center
Face Time
Healthcare Design - November 2020 - Intro
Healthcare Design - November 2020 - Healthcare Design - November 2020
Healthcare Design - November 2020 - Cover2
Healthcare Design - November 2020 - 1
Healthcare Design - November 2020 - 2
Healthcare Design - November 2020 - 3
Healthcare Design - November 2020 - 4
Healthcare Design - November 2020 - 5
Healthcare Design - November 2020 - 6
Healthcare Design - November 2020 - 7
Healthcare Design - November 2020 - 8
Healthcare Design - November 2020 - Editorial
Healthcare Design - November 2020 - Show Talk
Healthcare Design - November 2020 - 11
Healthcare Design - November 2020 - Photo Tour
Healthcare Design - November 2020 - 13
Healthcare Design - November 2020 - 14
Healthcare Design - November 2020 - 15
Healthcare Design - November 2020 - 16
Healthcare Design - November 2020 - 17
Healthcare Design - November 2020 - 18
Healthcare Design - November 2020 - 19
Healthcare Design - November 2020 - 20
Healthcare Design - November 2020 - Touching Base
Healthcare Design - November 2020 - 22
Healthcare Design - November 2020 - 23
Healthcare Design - November 2020 - First Look: De Paul Treatment Centers
Healthcare Design - November 2020 - 25
Healthcare Design - November 2020 - Rising to Meet the Covid-19 Challenge
Healthcare Design - November 2020 - 27
Healthcare Design - November 2020 - Hcd Virtual Preview
Healthcare Design - November 2020 - 29
Healthcare Design - November 2020 - 30
Healthcare Design - November 2020 - 31
Healthcare Design - November 2020 - 32
Healthcare Design - November 2020 - 33
Healthcare Design - November 2020 - 34
Healthcare Design - November 2020 - 35
Healthcare Design - November 2020 - 36
Healthcare Design - November 2020 - 37
Healthcare Design - November 2020 - HCD
Healthcare Design - November 2020 - HCDCover1
Healthcare Design - November 2020 - HCDCover2
Healthcare Design - November 2020 - HCD1
Healthcare Design - November 2020 - HCD2
Healthcare Design - November 2020 - HCD3
Healthcare Design - November 2020 - HCD4
Healthcare Design - November 2020 - HCD5
Healthcare Design - November 2020 - HCD6
Healthcare Design - November 2020 - HCD7
Healthcare Design - November 2020 - HCD8
Healthcare Design - November 2020 - HCD9
Healthcare Design - November 2020 - HCD10
Healthcare Design - November 2020 - HCD11
Healthcare Design - November 2020 - HCD12
Healthcare Design - November 2020 - HCD13
Healthcare Design - November 2020 - HCD14
Healthcare Design - November 2020 - HCD15
Healthcare Design - November 2020 - HCD16
Healthcare Design - November 2020 - HCD17
Healthcare Design - November 2020 - HCD18
Healthcare Design - November 2020 - HCD19
Healthcare Design - November 2020 - HCD20
Healthcare Design - November 2020 - HCD21
Healthcare Design - November 2020 - HCD22
Healthcare Design - November 2020 - HCD23
Healthcare Design - November 2020 - HCD24
Healthcare Design - November 2020 - HCD25
Healthcare Design - November 2020 - HCD26
Healthcare Design - November 2020 - HCD27
Healthcare Design - November 2020 - HCD28
Healthcare Design - November 2020 - HCD29
Healthcare Design - November 2020 - HCDCover3
Healthcare Design - November 2020 - HCDCover4
Healthcare Design - November 2020 - Community Beacon
Healthcare Design - November 2020 - 39
Healthcare Design - November 2020 - 40
Healthcare Design - November 2020 - 41
Healthcare Design - November 2020 - Burst of Creativity
Healthcare Design - November 2020 - 43
Healthcare Design - November 2020 - 44
Healthcare Design - November 2020 - 45
Healthcare Design - November 2020 - 46
Healthcare Design - November 2020 - 47
Healthcare Design - November 2020 - 48
Healthcare Design - November 2020 - 49
Healthcare Design - November 2020 - 50
Healthcare Design - November 2020 - 51
Healthcare Design - November 2020 - 52
Healthcare Design - November 2020 - 53
Healthcare Design - November 2020 - Island Charm
Healthcare Design - November 2020 - 55
Healthcare Design - November 2020 - 56
Healthcare Design - November 2020 - 57
Healthcare Design - November 2020 - 58
Healthcare Design - November 2020 - 59
Healthcare Design - November 2020 - 60
Healthcare Design - November 2020 - 61
Healthcare Design - November 2020 - 62
Healthcare Design - November 2020 - Operations and Facility Management Air Time
Healthcare Design - November 2020 - 64
Healthcare Design - November 2020 - 65
Healthcare Design - November 2020 - Product Spotlight Lighting
Healthcare Design - November 2020 - 67
Healthcare Design - November 2020 - The Center
Healthcare Design - November 2020 - 69
Healthcare Design - November 2020 - 70
Healthcare Design - November 2020 - 71
Healthcare Design - November 2020 - 72
Healthcare Design - November 2020 - 73
Healthcare Design - November 2020 - 74
Healthcare Design - November 2020 - 75
Healthcare Design - November 2020 - 76
Healthcare Design - November 2020 - 77
Healthcare Design - November 2020 - 78
Healthcare Design - November 2020 - 79
Healthcare Design - November 2020 - Face Time
Healthcare Design - November 2020 - Cover3
Healthcare Design - November 2020 - Cover4
Healthcare Design - November 2020 - AIA1
Healthcare Design - November 2020 - AIA2
Healthcare Design - November 2020 - AIA3
Healthcare Design - November 2020 - AIA4
Healthcare Design - November 2020 - AIA5
Healthcare Design - November 2020 - AIA6
Healthcare Design - November 2020 - AIA7
Healthcare Design - November 2020 - AIA8
Healthcare Design - November 2020 - AIA9
Healthcare Design - November 2020 - AIA10
Healthcare Design - November 2020 - AIA11
Healthcare Design - November 2020 - AIA12
Healthcare Design - November 2020 - AIA13
Healthcare Design - November 2020 - AIA14
Healthcare Design - November 2020 - AIA15
Healthcare Design - November 2020 - AIA16
Healthcare Design - November 2020 - AIA17
Healthcare Design - November 2020 - AIA18
Healthcare Design - November 2020 - AIA19
Healthcare Design - November 2020 - AIA20
Healthcare Design - November 2020 - AIA21
Healthcare Design - November 2020 - AIA22
Healthcare Design - November 2020 - AIA23
Healthcare Design - November 2020 - AIA24
https://www.nxtbook.com/emerald/healthcaredesign/202404
https://www.nxtbook.com/emerald/healthcaredesign/202403
https://www.nxtbook.com/emerald/healthcaredesign/20240102
https://www.nxtbook.com/emerald/healthcaredesign/202312
https://www.nxtbook.com/emerald/healthcaredesign/202311
https://www.nxtbook.com/emerald/healthcaredesign/202310
https://www.nxtbook.com/emerald/healthcaredesign/202309
https://www.nxtbook.com/emerald/healthcaredesign/202308
https://www.nxtbook.com/emerald/healthcaredesign/20230607
https://www.nxtbook.com/emerald/healthcaredesign/202305
https://www.nxtbook.com/emerald/healthcaredesign/202304
https://www.nxtbook.com/emerald/healthcaredesign/202303
https://www.nxtbook.com/emerald/healthcaredesign/20230102
https://www.nxtbook.com/emerald/healthcaredesign/202212
https://www.nxtbook.com/emerald/healthcaredesign/202211
https://www.nxtbook.com/emerald/healthcaredesign/202210
https://www.nxtbook.com/emerald/healthcaredesign/202209
https://www.nxtbook.com/emerald/healthcaredesign/202208
https://www.nxtbook.com/emerald/healthcaredesign/20220607
https://www.nxtbook.com/emerald/healthcaredesign/202205
https://www.nxtbook.com/emerald/healthcaredesign/202204
https://www.nxtbook.com/emerald/healthcaredesign/202203
https://www.nxtbook.com/emerald/healthcaredesign/20220102
https://www.nxtbook.com/emerald/healthcaredesign/202112
https://www.nxtbook.com/emerald/healthcaredesign/202111
https://www.nxtbook.com/emerald/healthcaredesign/202110
https://www.nxtbook.com/emerald/healthcaredesign/202109
https://www.nxtbook.com/emerald/healthcaredesign/202108
https://www.nxtbook.com/emerald/healthcaredesign/202106
https://www.nxtbook.com/emerald/healthcaredesign/202105
https://www.nxtbook.com/emerald/healthcaredesign/healthcare-design-april-2021
https://www.nxtbook.com/nxtbooks/healthcaredesign/202103
https://www.nxtbook.com/nxtbooks/healthcaredesign/20210102
https://www.nxtbook.com/nxtbooks/healthcaredesign/202012
https://www.nxtbook.com/nxtbooks/healthcaredesign/202011
https://www.nxtbook.com/nxtbooks/healthcaredesign/202010
https://www.nxtbook.com/nxtbooks/healthcaredesign/202009
https://www.nxtbook.com/nxtbooks/healthcaredesign/202008
https://www.nxtbook.com/nxtbooks/healthcaredesign/20200607
https://www.nxtbook.com/nxtbooks/healthcaredesign/202005
https://www.nxtbook.com/nxtbooks/healthcaredesign/202004
https://www.nxtbook.com/nxtbooks/healthcaredesign/202003
https://www.nxtbook.com/nxtbooks/healthcaredesign/20200102
https://www.nxtbook.com/nxtbooks/healthcaredesign/201912
https://www.nxtbook.com/nxtbooks/healthcaredesign/201911
https://www.nxtbook.com/nxtbooks/healthcaredesign/201910
https://www.nxtbook.com/nxtbooks/healthcaredesign/201909
https://www.nxtbook.com/nxtbooks/healthcaredesign/201908
https://www.nxtbook.com/nxtbooks/healthcaredesign/20190607
https://www.nxtbook.com/nxtbooks/healthcaredesign/201905
https://www.nxtbook.com/nxtbooks/healthcaredesign/201904
https://www.nxtbook.com/nxtbooks/healthcaredesign/201903
https://www.nxtbook.com/nxtbooks/healthcaredesign/201902
https://www.nxtbook.com/nxtbooks/healthcaredesign/201901
https://www.nxtbook.com/nxtbooks/healthcaredesign/201812
https://www.nxtbook.com/nxtbooks/healthcaredesign/201811
https://www.nxtbook.com/nxtbooks/healthcaredesign/201810
https://www.nxtbook.com/nxtbooks/healthcaredesign/201809
https://www.nxtbook.com/nxtbooks/healthcaredesign/201808
https://www.nxtbook.com/nxtbooks/healthcaredesign/20180607
https://www.nxtbook.com/nxtbooks/healthcaredesign/201805
https://www.nxtbook.com/nxtbooks/healthcaredesign/201804
https://www.nxtbook.com/nxtbooks/healthcaredesign/201803
https://www.nxtbook.com/nxtbooks/healthcaredesign/201802
https://www.nxtbook.com/nxtbooks/healthcaredesign/201801
https://www.nxtbook.com/nxtbooks/healthcaredesign/201712
https://www.nxtbook.com/nxtbooks/healthcaredesign/201711
https://www.nxtbook.com/nxtbooks/healthcaredesign/201710
https://www.nxtbook.com/nxtbooks/healthcaredesign/201709
https://www.nxtbook.com/nxtbooks/healthcaredesign/201708
https://www.nxtbook.com/nxtbooks/healthcaredesign/201706
https://www.nxtbook.com/nxtbooks/healthcaredesign/201705
https://www.nxtbook.com/nxtbooks/healthcaredesign/201704
https://www.nxtbook.com/nxtbooks/healthcaredesign/201703
https://www.nxtbook.com/nxtbooks/healthcaredesign/201702
https://www.nxtbook.com/nxtbooks/healthcaredesign/201701
https://www.nxtbook.com/nxtbooks/healthcaredesign/201612
https://www.nxtbook.com/nxtbooks/healthcaredesign/201611
https://www.nxtbook.com/nxtbooks/healthcaredesign/201610
https://www.nxtbook.com/nxtbooks/healthcaredesign/201609
https://www.nxtbook.com/nxtbooks/healthcaredesign/201608
https://www.nxtbook.com/nxtbooks/healthcaredesign/20160607
https://www.nxtbook.com/nxtbooks/healthcaredesign/201605
https://www.nxtbook.com/nxtbooks/healthcaredesign/201604
https://www.nxtbook.com/nxtbooks/healthcaredesign/201603
https://www.nxtbook.com/nxtbooks/healthcaredesign/20160102
https://www.nxtbook.com/nxtbooks/healthcaredesign/201512
https://www.nxtbook.com/nxtbooks/healthcaredesign/201511
https://www.nxtbook.com/nxtbooks/healthcaredesign/201510
https://www.nxtbook.com/nxtbooks/healthcaredesign/201509
https://www.nxtbook.com/nxtbooks/healthcaredesign/201508
https://www.nxtbook.com/nxtbooks/healthcaredesign/201506
https://www.nxtbook.com/nxtbooks/healthcaredesign/201505
https://www.nxtbook.com/nxtbooks/healthcaredesign/201504
https://www.nxtbook.com/nxtbooks/healthcaredesign/201503
https://www.nxtbook.com/nxtbooks/healthcaredesign/201501
https://www.nxtbook.com/nxtbooks/healthcaredesign/201412
https://www.nxtbook.com/nxtbooks/healthcaredesign/201411
https://www.nxtbook.com/nxtbooks/healthcaredesign/201410
https://www.nxtbook.com/nxtbooks/healthcaredesign/201409
https://www.nxtbook.com/nxtbooks/healthcaredesign/201408
https://www.nxtbook.com/nxtbooks/healthcaredesign/201407
https://www.nxtbook.com/nxtbooks/healthcaredesign/201405
https://www.nxtbook.com/nxtbooks/healthcaredesign/201404
https://www.nxtbook.com/nxtbooks/healthcaredesign/201403
https://www.nxtbook.com/nxtbooks/healthcaredesign/201401
https://www.nxtbook.com/nxtbooks/healthcaredesign/201312
https://www.nxtbook.com/nxtbooks/healthcaredesign/201311
https://www.nxtbook.com/nxtbooks/healthcaredesign/201310
https://www.nxtbook.com/nxtbooks/healthcaredesign/201309
https://www.nxtbook.com/nxtbooks/healthcaredesign/201308
https://www.nxtbookmedia.com