Check the listing for details. MountainAir® Altitude Tent for cardio improvement. Condition: Used. Listed at 520.00 USD. The MountainAir® Tent only includes an altitude tent that goes over your queen or full-sized bed. It does not include the air separation unit or any other component of the altitude simulation system. 30 Day Money back guarantee – if you are not happy with your purchase for any reason, you can return the tent for a full refund within 30 days of receipt. Client to pay for return shipping fees and refund is processed within 4 weeks of receipt at our warehouse. A 20% restocking fee shall apply. Size: Queen/Full – same dimensions as a queen-sized mattress. If you have a king-sized bed, you can place the tent on top of your mattress. If you have a single bed, you can place it into the tent with room to spare on each side. MountainAir® tents are in stock and will ship within 1 business day of ordering. You can read more about our systems at mountainaircardio.com