The hazer may not be the cheapest type of rookmachine, but it is able to produce the most evenly-distributed, most transparent mist. This allows your light beams to really show up well without the dancefloor ending up in a cloud of smoke. Contrary to the fazer, which creates a relatively thin layer of mist, the hazer doesn't need to warm up again between use and you won'tneed a fan to distribute the mist evenly. A hazer works with special hazerfluid.
No sure which smoke machine is right for you? Read the Buyers Guide: How do I Choose the Right Hazer, Fazer, or Smoke Machine?