IQAir HealthPro Plus – Three-Pack, Medical-Grade Air Purifier with HyperHEPA Filter for Odors, Bacteria, Viruses, Airborne Particles, Allergens, Pets, Asthma Triggers, Smoke, Pollen, Dust, Swiss Made. The #1 rated allergy and asthma air purifier for particulate pollution, gases, and odors, featuring exclusive IQAir HyperHEPA filtration technology tested and certified to filter 99.5% of all particles down to 0.003 microns. This room air purifier has received more top reviews and awards than any other air purifier for allergies. At the heart of this revolutionary medical-grade air purifier is the exclusive IQAir HyperHEPA filtration technology. A dense network of nano-fibers effectively traps pollutant particles of all sizes, including viruses, pet dander, household dust, dust mites, mold spores, a variety of allergens, asthma triggers, and even cigarette smoke. Ordinary home air cleaners with true HEPA air filters are only tested for the largest 10% of particles, but IQAir HyperHEPA filtration gives you better air by filtering everything, including the smallest particles that exist, to give you better air. Imagine the difference that cooler pure air can make to your health. The New Edition provides up to 25% more clean air, is 32% quieter, and filters last up to 38% longer.