IQAir HealthPro Plus 250 If you are serious about the air you breath, this really is the best filter available on the market. This is the "New Edition" model - Longer life then previous version. Box, Manuals, Certificate, Remote control included. Around 1 year old. New price was 12000RMB. To save you hassle I can arrange delivery for free. Filters remaining life (much more cost effective then Blueair where replacement filter is every 6months) PreMax: 1yr + V5-Cell: 1.5yrs + HyperHEPA: 4.5yrs + Reason for sale: New apartment already has one Price: 6500RMB