Numatic NQS250B All Steel Vacuum Cleaner - CommercialNumatic NQS250B Commercial Vacuum Cleaner The NQS250B (new version of NQS250B 22 with blower output) is the original Numatic vacuum cleaner that has been well tested through over twenty years of production and refinement. The NQS250B features a sturdy and robust all steel construction that is designed to take the rough and tumble that commercial use often throws up. Easy maintenance has also been built into the NQS250B, this can be seen when looking