Blue Pure 311i Max

I’ve been using a Blueair 311i Max for about a year now. My indoor AQI used to be around 45 to 60 on normal days and sometimes higher when cooking. On auto mode it usually drops below 10 in 15 to 20 minutes. It’s honestly a relief to see the sensor light turn from orange to blue. When I was first lo

Here’s their performance and price: -c909: 522sqft vs 311i+ max: 525sqft -$200($160 if on discount) vs $240(not sure abt the 311i+ discount) -filter at costco is $40($30 if discount) vs $50($37 if u buy filter subscription on blueair website) -90watt vs 38watt(highest setting) blueair 311i+ max: 12.