environmental
air
beauty
black
blowing
box
cable
circuit
connect
connection
contour
dry
dryer
drying
eco
ecology
electric
electrical
electricity
energy
environment
equipment
flash
green
hair
hairdryer
hot
icon
illustration
industrial
industry
isolated
light
line
linear
nature
outline
plant
power
salon
save
set
socket
switch
switchboard
technology
thunderbolt