@ranatalha First of all, they says all precaution has been taken to make Pyro safe. But of course, precautions should be taken when you are shoot balls of fire because it is not a toy. Everything you need to know to use Pyro safely is shown to you in a video. Video teaches you how to use the device safely. Pyro has already sold up to thousands. No negative security issue has been reported up to now. The security results look perfect for now. I think Pyro is safe if used correctly.