Pressure inside an air mattress

[kingammo]

Hey guys,

I am to design an air mattress to lift a patient of about 200kg.
The dimensions of the mattress is 1000mm x 610mm x 250mm.
The max flow rate from blower is 700lpm.

What and how should i calculate the pressure with which i need to fill the mattress?
Also, how to calculate the time required to fill for different patient weights?

Thanks

 

[billy_joule]

Is this homework? Please use the homework template.

Do you know the definition & units of pressure? You have a mass and can estimate an area so can solve for pressure.

http://en.wikipedia.org/wiki/Pressure

You cannot find fill time without more blower specs.