builder
cancelling
construction
contractor
coveralls
demonstrating
diy
ear
earmuffs
earphone
equipment
foreman
head
headphones
headset
hearing
industrial
industry
ladder
listening
loud
maintenance
man
mechanic
muff
muffs
noise
overalls
phones
plug
pointing
presenting
professional
protecting
protection
protective
reduction
repairman
repairshop
safe
safety
showing
silence
sitting
sound
supervisor
uniform
work
worker
workshop