I have a Swedish designed Blueair 203 air purifier for sale. I will leave China soon, which is why I need to sell it. Blueair is one of the top brands of air purifiers, and my 203 unit is in excellent condition! The model can handle a room up to about 30m2, and it is very quiet when running in HEPA silence mode. Replacement filters can be bought online or from Torana Center. If you need assistance I can help with ordering extra filters for the unit. I am looking for 2150RMB (A new unit is 3590RMB at Torana)