The Alen® 75i Air Purifier isn’t just a game changer—it’s a life changer. Consumer Reports recommends the Alen® BreatheSmart 75i Pure with an overall EXCELLENT score. Alen® air purifiers are engineered to outperform by combining power with efficacy and superb filtration technology. And our beautifully designed, whisper-quiet units do it without disrupting your conversations or your lifestyle. --- 24/7 protection with auto-purifying power WiFi connectivity for remote control and air quality history The BreatheSmart 75i can purify up to 2,600 square feet in one hour or 1,300 square feet every thirty minutes - twice the volume of leading competitors Pink noise for up to 25% better sleep True HEPA (H13) filter options, ozone-free Capture up to 99.9% of harmful particles 751