Airborne
pollution,
derived
from
tiny
particulate
matter
(PM)
and
the
pandemic
virus,
strongly
stimulates
demand
for
personal
protective
materials
but
also
causes
serious
environmental
issues
due
to
mass
discarding
of
disposable
nondegradable
face
masks.
Despite
some
reports
bio-based
filters,
however,
it
remains
a
challenge
develop
biodegradable
respirators
with
efficient,
wet-stable
PM0.3
filtration
low
pressure
drop.
Herein,
degradable
multi-scale
fibrous
filter
composed
polylactic
acid
(PLA)
micro-/submicron-fibers
bacterial
cellulose
(BC)
nanofibers
was
rationally
designed
balance
efficiency
resistance.
The
2D
BC
nano-mesh
small
pores
self-assembled
by
electro-spraying
technique
PLA
submicron-fibrous
networks
medium
were
prepared
electrospinning
technology.
multi-layer
micro-/submicron-/nano-fiber
construction
endowed
membrane
pore
size
1.27
μm
extended
particle
flow
path,
which
contributed
efficient
durable
interception.
As
result,
showed
over
99.89%
drop
104
Pa.
More
significantly,
still
presented
99.68%
removal
after
long-term
under
90%
RH.
This
work
may
provide
meaningful
guidance
development
high-protective
air
filters.
Abstract
This
study
proposes
a
novel
process
for
treating
oily
wastewater
by
integrating
pretreatment,
combined
air
flotation,
and
fine
multi-stage
filtration.
The
innovates
optimizes
common
technologies.
aim
is
to
efficiently
remove
oil
suspended
matter
from
discharged
accidental
catchment
basins
at
transformer
substations.
ensures
that
the
quality
of
meets
standards.
Additionally,
parameter
settings
throughout
were
optimized
determine
most
effective
configurations,
ensuring
energy-efficient
cost-effective
operation
while
effectively
wastewater.
research
serves
as
foundation
developing
more
efficient
environmentally
friendly
treatment
processes
It
offers
practical,
sustainable
solutions
industries
facing
challenges
in
treatment.
advances
technology
Graphical
abstract
Wearable
sensors
provide
continuous
physiological
information
and
measure
deviations
from
healthy
baselines,
resulting
in
the
potential
to
personalize
health
management
diagnosis
of
diseases.
With
emergence
COVID-19
pandemic,
functionalized
face
masks
as
smart
wearable
for
multimodal
and/or
multiplexed
measurement
physical
parameters
biochemical
markers
have
become
general
population
environmental
pollution
monitoring.
This
Review
examines
recent
advances
applications
based
on
implantation
digital
technologies
electronics
focuses
respiratory
monitoring
with
advantages
autonomous
flow
driving,
enrichment
enhancement,
real-time
monitoring,
diversified
sensing,
easily
accessible.
In
particular,
detailed
introduction
diverse
signals
including
physical,
inhalational,
exhalant
corresponding
associations
is
presented.
end,
we
also
a
personal
perspective
future
research
directions
remaining
challenges
commercialization
multiple
sensing.
