particles

[gilded reef]

so i made a skript which when a mob spawn they spawn with some effects but there particles show how do i remove that?
on spawn of wither skeleton:

apply strength 4 to event-entity for 9999 days
set event-entity's held item to diamond sword of sharpness 3
equip event-entity with unbreakable netherite helmet
set maximum health of event-entity to 50
heal event-entity```

[bitter lake]

you can check the docs for examples of the without any particles syntax