Faucet aerator

Aerators can simply be screwed onto the faucet head, creating a non-splashing stream and often delivering a mixture of water and air.

Adding the aerator does two things: it reduces the volume of falling water which reduces the splash distance, and it creates multiple "mini-streams" within the main stream.

Using faucet aerators may help meet local regulations and construction standards such as ASME A112.18.1, U.S.

Leadership in Energy and Environmental Design (LEED) certifications[6][failed verification] or WELS (Australia/New Zealand).

In Europe, European standard EN246 "Sanitary tapware — General specifications for flow rate regulators" defines the flow rate and noise reduction requirements.