For a pure air inside

Contrary to what is often thought, the residential indoor air is often more polluted than outdoor air. It is therefore useful to purify the air by capturing and storing the suspended pollutants.

Fellowes This purifier is very simple to use, thanks to its automatic mode that allows it to automatically adapt their performance to the quality of the air that measure in real time. Silencer (unless pushed in turbo mode) and a reasonable footprint (50cm high by 40cm wide), it fits well in a cozy room already home appliances or office with computer equipment; however I find its design is less suitable for a living room or room type room (well, according to the tastes of each, but look at the picture and ask you if you see this object permanently installed in your living room before buying ).

Regarding efficiency, it has to trust what the manufacturer indicated ("99.97% of impurities and particles present in the air capture, of a diameter greater than 0.3 microns such as mold, allergens, pollen , mites "), and the camera on the screen, because at least to carry out air quality measurements with other equipment, it is unclear whether the purification is effective.

Warning: the filters must be changed regularly (one LED signals). HEPA filters are sold around ten euros each and last about 12 months; carbon filter costs about 3 and lasts about 3 months. Remember to calculate the cost price of the device operation before investing! (About 20 / year for filters)
Amazon refreshed Filters:
Fellowes HEPA Air Filter 9370101 widescreen for air purifier 4
Fellowes 9372101 wide carbon filter air purifier by 4