The other is by suspending bottles upside down so that the particles settle in the neck.

However, because these particles settle rather quickly, air filters are not very good at removing them completely from indoor areas.

As the water starts to melt, smaller particles can settle into the opening spaces while larger particles are still raised.

When inhaled, these particles can settle in the lungs and respiratory tract and cause health problems.

Any particles of suspended solids will gradually settle to the floor while the clear water exits through pipes higher up.

Large-diameter particles do not follow the gas stream but continue into a dead air space and settle.

Over a period of time the particles settle.

In settling process theory, a particle will settle only if:

Solid particles in suspension may settle to the bottom of a device or adhere to its surfaces, spoiling the effect.

The particles settled to the ground and disappeared.