1. A centrifugal pump for use with a portable storage device for storing fluid fluid released subject, comprising: a substantially cylindrical pump chamber having an inner diameter, an inlet for a fluid which is in fluid communication with the pump chamber, an outlet for fluid medium, which is in fluid communication with the pump chamber ikrylchatku which has an outer diameter and is rotatably mounted on the drive shaft within the pump chamber between the inlet for fluid and an outlet for fluid, wherein the drive shaft is rotatable by a drive means which rotates the impeller during operation, and accelerates fluid flow within the pump chamber via the fluid inlet and out through the outlet for the fluid, wherein the inner diameter of the pump chamber is substantially equal to or greater than the outer diameter of 1.40 krylchatki.2. Centrifugal pump according to Claim. 1, wherein the inner diameter of the pump chamber is not more than 1.50 of the outer diameter krylchatki.3. Centrifugal pump according to Claim. 1 or 2, wherein the inner diameter of the pump chamber is substantially equal to or greater than the outer diameter of 1.42 krylchatki.4. Centrifugal pump according to claim. 3, wherein the inner diameter of the pump chamber is from 1.42 to 1.45 inclusive, the outer diameter krylchatki.5. Centrifugal pump according to claim. 3, wherein the inner diameter of the pump chamber is from 1.42 to 1.43 inclusive, the outer diameter krylchatki.6. Centrifugal pump according to Claim. 1, wherein the impeller comprises a central spindle mounted rotatably on the drive shaft, and a plurality
