This is a fantastic unit, we are impressed by its speed of refreshing the air from it’s mounted wall space. We like how it’s at eye level and it’s not taking up floor space. It truly cleans the air, as it promises. It's technology scans the environment and adapts it's levels of protection accordingly, so it's at the forefront of air purifier tech.

Highlighted features of the Fellowes Aeramax Pro AM4:

• Antimicrobial HEPA treatment: Applied to the True HEPA filter inhibits the growth of odor and stain-causing microorganisms to extend the filter lifespan 
• Monitors occupancy and air quality: the air purifier that works harder when you need it powered by EnviroSmart™ Technology 

• See real time air quality data: shows the percentage of particles captured and a live status of room air quality 
• Wall Mount: Seamlessly integrates in your space creating whole-room circulation
• 4-stage H13 True HEPA Filtration: Effectively removes at least 99.95% of particles as small as 0.1 microns, including allergens, such as pollen, dust, pet dander, and smoke in rooms 650-1100 square feet 

Conclusion:

A superb unit, with the caveat that it does take up a large wall footprint so you need to be living or working in a large space for this. This would surely be our pick for a restaurant.We were just so impressed with it’s cleansing abilities, ridding viruses so completely. If the size and price don’t deter you, this unit will do everything you want from an air purifier.