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General description
2.1 Introduction
Description
High quality air is of vital importance to many industries, but nowhere as literally as in the medical
sector. The purity of the compressed air for certain hospital applications is crucial. The air drawn
from our environment however, especially in cities or industrial areas, is rarely of a sufficient
quality for medical purposes.
For this application, BeaconMedæs has designed the dual medical air purifier range. The purifier
takes air from any regular compressor and treats it to become ultra clean. It consists of a number
of components, which together, after the commissioning certification, produce air with a quality
matching the Pharmacopoeia legislation.
The purifier is primarily aimed at the health care sector where applications like breathing air in
operating theatres and surgical air to drive surgical tools demand high quality air.
•
A purifier consists of 2 independent air treatment units, each consisting of following stages of
cleaning:A water separator (WSD) to eliminate free water from the compressed air, thus
ensuring good operation of the desiccant dryer.
•
A coalescing filter (UD+ filter) to remove contaminating particles and oil droplets.
•
A desiccant dryer (PD dryer) to lower the pressure dew point (PDP) to -
40 ˚C (
-
40 ˚F),
eliminating the risk of condensation and strongly reducing water-related problems like bacteria
growth.
•
The QDT+ filter reduces hydrocarbons like oil vapour and smells to harmless levels and converts
excessive concentrations of CO into CO
2
where the hopcolite catalyst filter is fitted.
•
A particle filter (PDp+ filter) to eliminate particles that may have migrated out of the desiccant
dryer.
Both units are controlled by a central controller (ES-MED). This central controller activates one
unit and will switch to the other one after a certain amount of time has elapsed. This guarantees
a constant delivery of purified air and also ensures service can be performed on one unit whilst
the system is still operating. At all times an indication of dew point and pressure can be retrieved
from the display.
Key qualities
• Pharmacopoeia compliant:
• The European Pharmacopoeia legislation accurately defines the required quality for
breathing air in hospitals, medical theatres and ambulatory centres. BeaconMedæs has
adopted this quality level for the purifier range.
• Company certification according to EN ISO 13485:
Hospital equipment with an influence on patient health must be certified to the Medical
Devices Directive (MDD 93/42/CE). This requires that the manufacturer is certified according
to EN ISO 13485 and organises strict product follow-up once in the field.
Summary of Contents for dMED 025
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