It is not suitable for a space of 90 sq.m. The maximum it can cover with smoke is ~5 sq.m. The smoke it produces is incredibly little. It produces smoke for ~30 seconds and then stops, until it resumes operation and can produce smoke again. It does not have a remote control and you have to sit next to it, but that's my fault for not seeing it in the description. I regret buying it, and I wanted it for a simple Halloween party at home; it didn't even work for the effect, let alone for professional use.