WiFi & Bluetooth App Control and Voice Control: Wifi enabled purifier gives you the power to monitor and control your air quality from anywhere - 24/7! Voice Control Capable with the Alexa™ Skill or with your Google Assistant. Guardian App provides instant notifications and alerts you when it's time to replace the filter and uv-bulb.Air Quality Monitor (AQM) with Indicator Display: Smart AQM detects particulate matter that is 2.5+ microns in size and automatically adjusts to optimize room air quality.Fights Germs: UV-C light helps reduce airborne bacteria, viruses, mold spores* and works with Titanium Dioxide to reduce volatile organic compounds. *Tested with Staphylococcus Albus, and Escherichia Coli, Aspergillus Niger, and Phi-X174.AHAM Verified and Energy Star Certified: 22 inch 5 speed smart tower is best used for rooms up to 148 sq. feet. Filters and circulates room air over 4x per hour. The higher CADR the faster the unit filters the air. CADR Dust (102), Pollen (99) and Smoke (96). The CADR (Clean Air Delivery Rate) displayed on the product carton may not match the ratings on our Guardian Technologies website. Please refer to our website for the most accurate ratings. In an effort to stay up to date with Energy Star Version 2.0 testing requirements, CADR ratings on the manufacturers website reflect the test results of product manufactured after 10.16.20.Filter Replacement Reminder: Only one single filter needs to be replaced every 6-8 months depending on the use of the product. Replacement filter is filter B (model FLT4825). To lengthen the life of your filter a 4 pack of the carbon filters is also available (model FLT22CB4). IMPORTANT: Use GENUINE Guardian Technologies replacement parts to maintain product performance. 3 year limited manufacturer warranty.