Dear Mike,
I was very interested in your email as we recently encountered a similar issue when we moved to a purpose built Laser Suite at Salisbury District Hospital earlier this year. I was unable to identify a UK standard that allowed me to 'quote numbers' though to indicate how many air changes may be suitable. Numerous discussions involving architects, engineers, and microbiologists resulted in a figure of ten air changes per hour being chosen as adequate for purpose and that is what we now have.
We also use a Walker filtration unit to remove as much of the plume as possible 'at source' and wear masks for Q-switching and resurfacing procedures.
More information available on request!
Philip Wright
Dr Philip Wright
Scientific Director
Wessex Specialist Laser Centre
Salisbury District Hospital
Salisbury
Wiltshire SP2 8BJ
Tel: 01722 336 262 ext 3520
-----Original Message-----
From: British Medical Laser Association [mailto:[log in to unmask]]On
Behalf Of Michael Edwards
Sent: 07 September 2006 15:06
To: [log in to unmask]
Subject: Air changes per hour in Laser Rooms
Dear List Members
Does any one out there know of any guidelines regarding the ventilation of rooms such as those in Day Case Units or other rooms which may not be of Operating Theatre standard and are used for laser procedures? In some cases these may not be suitable for the purpose.
The procedures involved may be totally enclosed such as the oesophagus or may be more superficial and involve the use of Laservac suction. It would be useful to be able to quote numbers when I am asked about the removal of residual odours.
Any information either on or off list would be appreciated.
Mike Edwards
LPA
Medical Physics Dept.
Derbyshire Royal Infirmary
Derby Tel: 01332 347141 ext.4579
e-mail: [log in to unmask]
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