IQAir [HealthPro Compact Air Purifier] Medical-Grade Air [HyperHEPA Filter]- Allergies, Pets, Asthma, Pollen, Dust; Swiss Made Excellent choice for asthma & allergies Proven medical-grade air filtration: 100x more effective than HEPA air purifiers Only IQAirs exclusive HyperHEPA filters stop ultrafine particles (down to 0.003 microns) Stops the smallest particles that exist: 10x smaller than a virus Powerful filtration: covers a room size up to 1,238 sq ft (115 sq m) Filter media is 100% sealed into the filter frame 3D UltraSeal perfectly seals the filter frame to the housing Individual seals ensure all is airtight Delivers up to 330cfm Only 27 watts used at lowest speed 215 watt max at highest speed 320-degree air delivery No noisy air outlet No annoying draft Programmable operating options Filter-life monitoring Color-coded lights indicate when a filter change is needed