Room 200 - Air purifier for restaurant, hospital, hotel5-stage air filtration system: Pre-filter + Activated carbon + True HEPA + PCO photo-catalyst + Negative ion Indicator light turns red when the filter cartridge needs cleaning or replacement Optional fragrance cartridges for aromatherapy High efficiency performance: Removing formaldehyde 91.3%; removing ammonia 88.6%; Removing benzene 94.7%; removing TVOC 92% Desktop or mounted type air purifier Remote control operation optional Wall-mounted or desktop type for wide use areaTechnical Data:Product size(inch/mm) 15.75x11.02x0.39/400×280×100 Weight lbs/kg 5.73/2.6 Rated Voltage DC 24V Air delivery rate(m3/h) 80 Noise Level <45db Negative ions 3 million/cc RatedPower 20W Coverage area 269 sq. ft /25m2 Remote control Optional UV lamp life 20000h