PRODUCT GRADING (Grade C) - Fair Condition > Visible scratches and signs of use throughout > Refurbished to the highest standards. Retail Box WHAT IS IN THE BOX TaoTronics AP005 HEPA Air Purifier for Home with Auto Mode, Timer PRODUCT DESCRIPTION he air purifiers filter is comprised of a pre-filter, H13 True HEPA filter and active carbon to trap 99.97% or more of particles as fine as 0.3 microns Healthy Air Provider Air purifiers for home capture pet dander, pollen, allergens, smoke, odors, and dust from the air in order to create a healthy environment for you and your family Smart Auto Mode Equipped with a sensor for real-time air quality monitoring, the air purifiers for room automatically switches fan speed based on the air quality; air purifiers for bedroom allows you to choose a suitable speed among low, medium and high High-Efficiency Air Cleaning The CADR value of this HEPA air purifier is 250 m³/h, which means it can circulate air in a 270 sq. ft. room 5 times per hour, 324 sq. ft. room 4 times; with air inlets on all 4 sides of the air cleaner, you can put the large room air purifier anywhere in your home for 360-degree air circulation Color-Coded Air Quality Results The built-in sensor displays the air quality in real-time with color-coded results; 4 different colors mean different levels of air quality, namely, BLUE-excellent, GREEN-good, ORANGE-moderate, RED-poor PRODUCT INFORMATION H13 true HEPA filter Auto fan speed adjustment CADR: 250m³/h Suitable for a 324 sq. ft. room 2/4/8/12 hour timer 360° air inlet Working noise as low as 25dB Corded Electric (DC24V)