A special cleanroom is needed to protect an harddisk
from being contaminated by the air. Please do not open 
the harddisk yourself, this will create a permanent damage 
to your drive. If the harddisk is electrostatic discharged, 
some data may be lost.

The high standard clean room are all Electro-static 
discharge Protected Areas (EPAs), and ionising 
blowers prevent the electro-static discharge.

Our cleanroom is Class 10 Clean room
(less than 10 particles(0.5 microns) /
per cubic foot

A special machine for reading the disc

Analyze the disc head and surface