The larger air purifier with silent convection technology is the AC 40. Featuring an unobtrusive design with innovative photocatalysis technology, it is particularly suitable for larger, quiet spaces where air purification is needed. The AC 40 is ideal for living and sleeping areas, as well as treatment and consultation rooms where disturbing background noise is not desired. When operated continuously, the AC 40 delivers its full performance while consuming minimal electricity. For an aromatic wellness experience, the AC 40 can be optionally equipped with a fragrance dispenser for essential oils.