Posted By Trevor Anstey
We use disposable half face masks for use in spray booths (non-isocynates)
The process is changing and we no longer use the booths as often as we once did.

Do we still need to dispose of the masks every month even if their not used as often or can we keep a maintenance records for the masks and dispose for example every three months?

Any ideas

Posted By Trevor Anstey
Sorry
Solvent based paints (organic vapours)
We use a half mask respirator (3M 4251) which has one piece carbon filter elements and built-in particulate filters together with an exhalation valve for easier breathing.

As a disposable respirator it should be changed every month but with the operation becoming less, I was wondering if we could use the same respirator but perform & record checks prior to use

Posted By Chris Packham
Trevor

If your paint spray booth is correctly specified and performing properly, and the correct working practices have been established and are being complied with, then why do you need a respirator? Remember that PPE, e.g. respirators, are only acceptable as a last resort, i.e. after all other practicable controle measures have been implemented. Since it is generally technically possible to prevent inhalation of paint spray by correct booth design, the requirement for a respirator could be construed as indicative that your control measures are not adequate.

My suggestion would be to get an occupational hygienist to check the booth. If performace is adequate then you can dispense with the respirator. If not, then you need to consider what you should be doing to upgrade the booth.

Another point to consider would be fit testing. If the respirator (and I am assuming that each person has their own) is only used occasionally, how do you check that face shape, etc. has not changed in the intervening period, such that a repeat fit testing may be required?

Chris