International Journal of Ventilation,
Journal Year:
2024,
Volume and Issue:
unknown, P. 1 - 22
Published: Nov. 1, 2024
Ventilation
strategies
in
healthcare
facilities
are
mainly
directed
towards
mechanical
systems.
Due
to
patients'
preferences
or
the
necessity
of
terminal
reheat/recool,
Air
Handler
Units
often
turned
off
windows
opened
when
systems
active.
This
leads
poor
IAQ,
nosocomial
infections,
and
energy
loss.
Besides,
ventilation
not
typically
intended
optimize
user
satisfaction.
Using
field
measurements
140
spaces,
survey
studies,
statistical
analysis,
this
study
compares
providing
thermal
comfort,
Perceived
Quality
as
an
indicator
315
samples
were
collected
for
air
velocity,
temperature,
relative
humidity,
PAQ,
odor
intensity,
VOC
concentrations.
Lowest
highest
pollutant
concentrations
observed
respectively
with
two
open
windows,
one
window,
natural
closed
nonventilated
spaces.
There
was
no
evidence
effect
on
environmental
parameters
Users'
comfort
quality
satisfaction
guaranteed
even
rate,
concentrations,
within
permissible
range.
Findings
support
efficient
performance
acceptable
quality.
BMC Public Health,
Journal Year:
2024,
Volume and Issue:
24(1)
Published: Nov. 14, 2024
Abstract
Background
Air
pollution
is
of
significant
environmental
and
public
health
concern
globally.
While
much
research
has
historically
focused
on
outdoor
air
pollution,
indoor
been
relatively
under-explored
despite
its
strong
connection
with
outcomes,
particularly
respiratory
health.
Studies
exposure
mitigation
consistently
reveal
a
knowledge
gap
between
the
understanding
as
risk
among
lay
individuals
expert
scientists.
This
study
aimed
to
assess
how
people
define
understand
concept
‘clean
air’
within
their
home
setting.
Methods
We
adopted
mixed-methods
approach
which
used
guided
questionnaire
designed
elicit
both
quantitative
qualitative
data,
collected
digital
voice
notes.
The
total
sample
(
n
=
40)
comprised
data
from
two
socially
different
sites
science
non-science
events.
compared
whether
notion
clean
inside
homes
differs
these
social
contexts
views
‘sense’
are
formed.
‘place’
facilitated
fluidity
in
our
explorative
analysis.
Insights
allowed
us
extent
context
mediates
individuals’
perceptions
attitudes
towards
risk.
Results
found
that
insights
were
embodied
repetitive
day-to-day
activities
(e.g.
cleaning
cooking).
Three
key
themes
emerged
(1)
Stimulative
Effects
,
(2)
Contextual
Conditions
(3)
Risk
Attitudes
.
Sensory
such
sight,
smell
temperature
primarily
motivated
participants
quality
homes.
These
shaped
by
contextual
conditions,
influencing
perceived
subsequently
spend
personal
time
considering
or
seeking
information
about
household
improving
quality.
Conclusions
Our
revealed
social,
geographical,
factors
play
crucial
role
understandings
pollution.
dimensions
should
be
integrated
into
designs
effective
communication
strategies.
findings
highlight
common
practices
intended
improve
may
pose
risks.
Therefore,
must
extend
beyond
objective
shape
interpret
respond
issues.
Clinical
trial
number
Not
applicable.
Sustainability,
Journal Year:
2024,
Volume and Issue:
16(21), P. 9160 - 9160
Published: Oct. 22, 2024
Office
workers
spend
a
considerable
part
of
their
day
at
the
workplace,
making
it
vital
to
ensure
proper
indoor
environmental
quality
(IEQ)
conditions
in
office
buildings.
This
work
aimed
identify
significant
factors
influencing
IEQ
and
assess
effectiveness
an
intervention
program,
which
included
introduction
plants,
carbon
dioxide
(CO2)
sensors,
ventilation,
printer
relocation
(source
control),
six
modern
buildings
improving
IEQ.
Thirty
spaces
Porto,
Portugal,
were
randomly
divided
into
control
groups.
Indoor
air
quality,
thermal
comfort,
illuminance,
noise
monitored
before
after
14-day
implementation.
Occupancy,
natural
floor
type,
cleaning
time
significantly
influenced
levels.
Biophilic
interventions
appeared
decrease
volatile
organic
compound
concentrations
by
30%.
Installing
CO2
sensors
optimizing
ventilation
strategies
that
mainly
relies
on
effectively
improved
renewal
resulted
28%
The
implementation
source
led
ultrafine
particle
ozone
14%
85%,
respectively.
However,
unexpected
increase
airborne
levels
was
detected.
Overall,
for
sample
offices
presented
acceptable
levels,
program
had
only
minor
or
inconsistent
impacts.
Offices
with
declared
problems
are
prime
candidates
further
research
fully
understand
potential
interventions.
