The NBS IS the ONLY whole house air purifier that can be veritably tested to ensure it is PERFORMING as PROMISED. A professional HVAC technician can test the purifier, and unlike a “self-test” mode other manufactures use which can readily give false results, the NBS series utilizes a scientific, sealed glass vial with a special insert rod. When the test is activated, the insert rod changes from blue to white, verifying the activated oxygen of the NBS is cleansing the air of pathogens.
NBS Durability The patent pending design of the NBS has been engineered for years of trouble-free performance with minimal maintenance. Once a year, the NBS system filter needs to be replaced by an authorized technician. That's it! At time of service, the technician will also confirm that O3 is properly being generated. The NBS is backed by a three year, parts and labor no hassle warranty. See warranty contract for details.
The NBS - Costs less than most whole house air purifiers on the market with a level of performance second to none. The NBS can be easily retrofitted into any existing HVAC system and the installation takes less than an hour.