Amazon has all the new Winix NK and HR Series air purifiers on sale for the lowest they have ever been.
NK105 – $209.28 – https://www.amazon.com/Winix-NK10…01LNALF5
NK100 – $190.86 – https://www.amazon.com/Winix-NK10…01LNALEG
HR1000 – $194 – https://www.amazon.com/Winix-HR10…01FWS0HS
HR950 – $203.15 – https://www.amazon.com/Winix-HR95…01FWS86F