Home Appliances Design Erythro Air Purifier by Nima Bavardi The Erythro air burifier's design reflects that with the way how a red blood cell take up oxygen to let man survives, The erythro air purifier take up the fresh air to let you born again. It's sensor can sense the air particles 1 micron in size. The efficient HEPA filters effectively filter dust (PM2.5). The odor sensor can greatly improve the sensitivity of identification of harmful gases in the air. Through active carbon and photo catalysis effect, further adsorption, catalysis of formaldehyde and other volatile organic compounds in the air.