 The Good.
The highly efficient Blueair 402 is smaller than other Blueair air purifiers and is relatively quiet. Thus, it's ideal for bedrooms or small livingroom.
This air purifier uses HEPASilent Technology which combines HEPA filtration and electrostatic to capture airborne particles. This unit does not produce ozone.
Housed in a galvanised steel construction, the stylish Blueair 402 has four fan speeds. You can choose between two filters to suit your needs - the particle & gas or smokestop (for ammonia gases and tobacco smoke removal).
It's recycleable filter is easy to change. This air purifier has a long 10 years extended warranty.
The Bad.
Blueair 402's filter is not true HEPA but is a actually a HEPA like media
Replacement filter is every 6 month. Not really good at removing odor. No filter replacement indicator.
Has no wheels
THE BOTTOMLINE.
Blueair 402 is a highly capable machine. A good choice - if your home doesn't have odor problems and you can maintain the filter replacement costs.
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SMALL ROOM AIR PURIFIER
