Features the same advanced HyperHEPA filter technologies as the HealthPro Plus, but in a smaller housing. It Does not include the V5-Cell gas and odor filter and cannot be upgraded to fit the V-5 Cell. Do not be mistaken by its smaller size, this unit has the ability to cover an area as large as 1240 sq. ft. and are built to the same standards and performance requirements as the larger models. At the heart of this revolutionary system is the exclusive IQAir HyperHEPA Filtration technology. A dense network of nano-fibers effectively traps particles of all sizes. That includes viruses, pet dander, dust mites, other allergens and even cigarette smoke. While ordinary air cleaners are only tested for the largest 10% of particles, IQAir's HyperHEPA filtration is tested and certified to filter 99.5% of all particles down to 0.003 microns. These are the smallest particles that exist.