機器
air
aircondition
appliance
clean
cleaner
cleaning
coil
cold
condition
conditioner
conditioning
cool
cooling
dirty
dust
dusty
electric
electrician
equipment
filter
fix
fixing
foam
home
hot
house
indoor
installation
installing
job
maintenance
purifier
remove
repair
repairing
replace
service
servicing
spray
system
technician
temperature
unhealthy
wall
wash
washing
wet
work
working