Object
There is not much to adjust with this Modifier, as all particles to which the Modifier has access are simply deleted. For this reason, it is often a good idea to use a Condition in advance to selectively sort out the particles to be deleted.
However, the Chance of the Modifier itself can also be used to control how many of the particles should be deleted.
This percentage value controls how many of the particles to which the Modifier has access in this animation image are to be deleted. By reducing this value, particles that are not deleted can be randomly sorted out.
Please note that Conditions and Modifiers are usually executed again in each animation screen. To ensure that enough particles survive for a longer period of time, you would therefore have to work with relatively small percentage values for the Chance.