How do I make this script play a particle sytem from prefab

Im a novice programmer with unity; Im using unity 5. I am using this script

using UnityEngine; using System.Collections;

public class OneUseTrap : MonoBehaviour

{
public int DamadgeOutput = 50;

 GameObject player;
 PlayerHealth playerHealth;
 BoxCollider BoxCollider; 
 void Awake ()
     
 {
     player = GameObject.FindGameObjectWithTag ("Player");                     
     playerHealth = player.GetComponent <PlayerHealth> (); 
     BoxCollider = GetComponent <BoxCollider> ();
     
 }
 
 void OnTriggerEnter (Collider other)
 {
     if (other.gameObject == player)
         
     {
         BoxCollider.isTrigger = true;
         playerHealth.TakeDamage (DamadgeOutput);
         Destroy (gameObject);
     }
     
 }

}

The particle system I want to play is here

https://www.assetstore.unity3d.com/en/#!/content/11158

the particle systems are prefabs what are the steps I would take to add a particle system and make it play on collision (for a few seconds) using scripting