Palumbo Patella Tracker Small Medium Stand Up Assists 1¯C) of ambient * Noise Nasal Cannulas 1¯C) of ambient * Noise level: 40 dBA @ setting 2 * HCPCS Code: E1390 E1392 E1356 E1358 E1399 A4615 * Precision Medical Inc 20 X 18 * The contoured design combined with the simple operation of the ISOFLO© Memory Control unit offers provides a new level of postural control and stability that has never been achieved in an air cushion * The contoured design positions the pelvis back in the wheelchair and centers the individual comfortably in the middle of cushion * The ISOFLO Memory Control unit locks air into each of the four compartments providing stability by minimizing side to side and front to back motion * Adjustable to individual * Viscoelastic insert conforms and adjusts 8 thick neoprene