The CodaAir® 900 comes with a 24V universal adapter. It has a maximum air coverage of 900-1100 sq ft (83-102 sq m) with 5 – 25 air exchanges per hour. It is 12”d X 18”w X 45”h (30cm X 46cm X 114cm) with a weight of 75 lbs (34 kgs). It comes with 2 choices of filters. Filter Choice A: Our Shirt Box Filter which is comprised of a 2” pleated filter, a 4” carbon/potassium filter (which contains 11 lbs (5 kgs) of a carbon and potassium permanganate mix), and a 4” HEPA and should be changed every 6 months. An initial filter is included with Choice A. Filter Choice B: 4-stage filter system (4 Canisters + HEPA). Our Semi-Annual Filter Kit should be changed 6 months after the annual kit and our Annual Filter Kit should be changed 6 months after the semi-annual kit. No initial filters are provided with Choice B.