 
   Up: Bayer Inertial foam (3cm)
Bottom: High density PU foam (9cm)
Density:
| Mattress   Cleaning: Depending on the usage and how much the patient   sweat, Remove the mattress and place it in an outside area where it can be   dried by the sun. The inside of mattress will dry. This should be done every   two to four weeks. 
      !  CAUTION•Never Clean The   Mattress Using An Ozone Sterilizer or autoclave | 
