air
air quality
allergen
allergies
apartment
asthma
bacteria
care
clean
cleaning
clogged
close up
conditioner
dangerous
dirt
dirty
disease
duct
dust
dusty
exhaust
fan
filter
filtration
grid
grill
hazard
health
home
house
hvac
illness
indoors
industrial
intake
interior
lattice
lint
macro
maintenance
mesh
office
pollution
risk
system
technology
unclean
vent
ventilation
ventilator
定額
Extremely dirty air ventilation grill of HVAC with dusty clogged filter, macro. close up. Cleaning and disinfecting is needed to prevent dust allergies and risk of other lung diseases. Shallow DOF.の素材 [FY310167346303]
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