ST1700 is the sitting type chamber. The user are able to sit on a folding chair while inside the chamber, it's very relaxing. For those people who don't want to lay down and take a sleep while doing the HBO therapy, this model is the best choice.Key Features:1.3ATA,30kPa, 4psi portable mild sitting hyperbaric chamberEasy Operation - One people can operate it without assistance.2 transparent viewing side windows.Delivers 93% oxygen under pressure via an oxygen headset/facial mask.Accomodate 1 people.Folding Chair - Very comfortableInternal Pressure Gauge - The user can observe the pressure while inside the chamber.Emergency valve - To Speed the depressurization.Seams are heat welded - No toxic glues are used.Unique 2 zipper seal for oxygen leak prevention.Internal steel frame - Hold the shape when not in use.Fast shipping to your door, by FedEx or DHL Express.SPECIFICATIONS OF ST1700 HYPERBARIC OXYGEN CHAMBER HYPERBARIC CHAMBERSIZELength*Width*Height: 170x70x110CM/67x28x43 INCHPRESSURE1.3ATA, 4PSI, 30KPAWEIGHT12KgFEATURE*HIGH STRENGTH MATERIAL      *NON-TOXIC/ECO-FRIENDLY      *PORTABLE/FOLADABLE    *SAFE/ONE-MAN OPERATION OIL FREE AIR COMPRESSOR SIZEL*W*H: 39X24X26CMWEIGHT18KgFEATURE*OIL FREE TYPE      *NON-TOXIC/ECO-FRIENDLY      *QUIET      *SUPER ADSORPTION ACTIVATED FILTERS    *DOUBLE INLET AND OUTLET FILTERS OXYGEN CONCENTRATORSIZEL*W*H:38X26X47CMWEIGHT27KgOXYGEN PURITY≥90%FEATURE*PSA MOLECULAR SIEVE HIGH TECHOLOGY      *NON-TOXIC/NON-CHEMICAL/ECO-FRIENDLY    *CONTINUOUS OXYGEN PRODUCTION, NO NEED OXYGEN TANKFOLDING CHAIRWEIGHT9KgSTAINLESS STEEL MATERIAL, DURABLE AND ELASTIC.      FUNCTION:CAN SIT OR SEMI-LYING INSIDE CHAMBER, MORE COMFORTABLE180°ADJUSTABLE