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Wearing RPE - Tight fitting mask if you have anosmia
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we have an employee who we have now discovered has anosmia - lack of taste or smell. Much of our work entails wearing of tight fitting face masks as part of the RPE. As we do a lot of onsite work each job is risk assessed and the mask determined per job. If we were to find a face mask he could wear - any suggestions gratefully accepted - and we are able to do a face fit test what are the safety issues?
If the mask were to malfunction and he has no sense of taste or smell hence he would be unable to detect a problem with the mask would we be within our rights to not allow him to do any work wearing RPE from a safety point of view. If the mask malfunctioned, he didn't know there was a problem and he collapsed no doubt we would be investigated and hauled over the coals.
We've been unable to find a definitive answer to this question of allowing him onsite under these circumstances
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Rank: Forum user
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carole1954 wrote:we have an employee who we have now discovered has anosmia - lack of taste or smell. Much of our work entails wearing of tight fitting face masks as part of the RPE. As we do a lot of onsite work each job is risk assessed and the mask determined per job. If we were to find a face mask he could wear - any suggestions gratefully accepted - and we are able to do a face fit test what are the safety issues?
If the mask were to malfunction and he has no sense of taste or smell hence he would be unable to detect a problem with the mask would we be within our rights to not allow him to do any work wearing RPE from a safety point of view. If the mask malfunctioned, he didn't know there was a problem and he collapsed no doubt we would be investigated and hauled over the coals.
We've been unable to find a definitive answer to this question of allowing him onsite under these circumstances
I would start by doing a quantitative face fit test which doesn't rely on the operatives sense of taste/smell.
I would then make sure the operative is well trained on wearing the RPE correctly and user checks.
Thinking of it logically how do we know if a mask is malfunctioning for hazards such as asbestos where a sense of taste or smell cannot indicate any breakthrough? Is breakthrough achieved from a mask malfunction well before the indicator of taste or smell kicks in anyway?
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Rank: Super forum user
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The final decision is a management decision via HR so give it to them after u have put the H&S bit in
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Rank: Super forum user
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Whether the person has a sense of smell is not relevant. As post 2 pointed out the majority of hazards that RPE protects against cannot be detected by smell or taste anyway (or if you can detect them it is too late). This is also why face fit testing for RPE is important, in that it gives you assurance that the mask is working. Of course as he cannot taste or smell you cannot use the more common qualitative and you will need to use the slightly more elaborate quantitative method based on counting particles in the air vs those in the mask but that is a reasonable approach.
If you are looking to dismiss the guy because he has no sense of smell, I think that your HR people will find that difficult, as I would suggest that providing him with regular face fit tests is what you be doing anyway.
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Rank: New forum user
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I just wanted to reiterate what the above posters have said. There is a simple solution to your issue; Quantitative fit testing should be conducted using a particle counting machine or even CNP if the mask type allows. A quantitative fit test will determine whether the RPE provides an adequate seal to the wearers face in order to protect them from potential workplace hazards, therefore the ability to smell is irrelevant.
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Rank: New forum user
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Thanks for your comments. We know and have every intention of going down the quantitative fit test. However my concern remains - what happens should the mask malfunction?
The products we predominantly use can in 95% of cases be detected by smell or taste so therefore the lack of senses are not irrelevant. If the mask should fail - which can happen - and he doesn't detect anything and then suffers, becomes ill etc because of it where would we stand should there be an HSE investigation - no doubt hung out to dry because we were aware of his amosnia.
n3iloo you quite rightly say that a quantitative will ensure a good seal but if the mask failed his senses would indeed be relevant. It happened to us very recently onsite where one of our guys was working in a very confined area and it was very hot. He rubbed his face and hadn't realised he had dislodged his mask but he immediately knew he had a problem as he could smell/taste what was being given off by the product. If that were to happen to our anosmia guy he wouldn't have known he had a problem.
Apart from a quantitative test what other options are there or am I the only person perceiving a problem?
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Rank: Super forum user
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Have you considered using a powered hood with appropriate filter. These do not require face fit testing and the user will know if the mask 'fails' as it will no longer be blowing across the face.
Take care
JohnC
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Rank: Forum user
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carole1954 wrote:Thanks for your comments. We know and have every intention of going down the quantitative fit test. However my concern remains - what happens should the mask malfunction?
The products we predominantly use can in 95% of cases be detected by smell or taste so therefore the lack of senses are not irrelevant. If the mask should fail - which can happen - and he doesn't detect anything and then suffers, becomes ill etc because of it where would we stand should there be an HSE investigation - no doubt hung out to dry because we were aware of his amosnia.
n3iloo you quite rightly say that a quantitative will ensure a good seal but if the mask failed his senses would indeed be relevant. It happened to us very recently onsite where one of our guys was working in a very confined area and it was very hot. He rubbed his face and hadn't realised he had dislodged his mask but he immediately knew he had a problem as he could smell/taste what was being given off by the product. If that were to happen to our anosmia guy he wouldn't have known he had a problem.
Apart from a quantitative test what other options are there or am I the only person perceiving a problem?
Reading this it seems to me that you may have more than a problem of the operatives lack of senses, i.e. confined space working with a hazardous substance and RPE not being suitable for the task i.e. it gets 'dislodged' with it failing to danger
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Rank: Super forum user
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I See your problem, but I think you can overcome with a practical solution, depending on the risk of the chemical:
Use a rubber half or full face mask with filter, this will enable the user to perform a self-check / seal test after putting the equipment on and at regular intervals.
Ensure filters are replaced at regular intervals - as user will not be able to use breakthrough as an indication of the need for filter replacement - though this is often not an ideal situation to be in anyway.
Make sure you are doing everything practically posisble to control the concentration before resorting to RPE (last line of defence!)
Ultimately the decision I would make would be based on the severity of exposure, irritant, harmful, carcinogen and the likely concentrations in the breathing zone (which I assume you have measured in order to be able to choose the right level of protection & filter).
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Rank: Forum user
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RPE/PPE shouldn't be used as the first line of defence. Engineering controls, LEV etc should all be used first if you cannot find alternative methods to achieve the same.
It sound like you may be using RPE as the only method to ensure safety.
Nederman (& Others) now do portable LEV units if a permanent one is not suitable. RPE and face fit would still be relevant but would then be the back up system.
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Rank: Super forum user
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The use of positive pressure equipment is always preferable to those that are negative pressure as they leak outwards if there is a leak
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Wearing RPE - Tight fitting mask if you have anosmia
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