respirators at mit nancy doherty mit ehs. most importantly… respirators are the last line of...
TRANSCRIPT
Respirators at MITNancy DohertyMIT EHS
Most Importantly…
• Respirators are the LAST LINE OF DEFENSE against chemical hazards.
• We use them only in certain circumstances:– Short term or temporary experiments/processes
where engineering controls aren’t possible– As an added or supplemental control (see this
often with pregnant women)– Emergency conditions
Types of Respirators
Increasing Degree of Protection
Filtering facepiece
Half-Mask APR PAPR
Full-Face APR
SAR
How to Obtain a Respirator from EHS
• Step 1- Medical Evaluation from MIT Medical– Required before initial fit test– Re-evaluation required after time period specified by
practitioner & with any major health status changes– Usually consists of a questionnaire and discussion with
NP/MD
• Step 2 – Complete Exposure Evaluation Questionnaire
Respirators can present a hazard in and of themselves to user. They place a big strain on the respiratory and cardiovascular systems.
This is why a medical evaluation is necessary.
How to Obtain a Respirator from EHS• Step 3 – Schedule and Complete a Fit Test
– Conducted at N52 EHS Office– Bring completed Exposure Evaluation
Questionnaire• EHS bases respirator type (and cartridges) on info
provided in this document
– Respirator issued and test conducted to ensure it fits user adequately
– Training in respirator use and care provided
How to Obtain a Respirator from EHS
• Step 4: Use Your Respirator and Comply with Recurrent Program Requirements– Come back for annual Fit Test when prompted by
EHS• Email alert
– Return to MIT Medical if…• Prompted by EHS (email again)• Change in health status
But it’s ONLY a dust mask…
• This seems like a lot of work for a little filtering facepiece, doesn’t it?– Mandatory respirator use (to protect against a
known or likely hazard)• All steps we just discussed are REQUIRED• Even for a filtering facepiece
– Voluntary respirator use (as a supplemental control or for comfort)
• Some situations allow for flexibility
Voluntary Respirator Use
• Elastomeric Respirators– Required:
• Medical Exam• Training• EHS must provide copy of OSHA’s
“Appendix D”– Sign & return to EHS
– Not Required:• Fit test
Voluntary Respirator Use• Filtering Facepieces
– Required:• EHS must provide copy of “Appendix D”
– Sign and return to EHS– We acknowledge that this is hard to enforce
– Not Required:• Medical Exam• Fit Test• Training
So this respirator walks into a lab…
• Realistically, many people at MIT probably don’t know that they shouldn’t just go out and buy a respirator– You may find “imposter” respirators in labs during
inspections• How do you know if they are MIT-issued?
– You can often get a good idea just from the respirator brand/model
EHS Usually Issues…
• MSA – Comfo Classic, Comfo Elite, or UltraTwin models
If you see…
IMPOSTERS!!**(likely)
How Can You Help?• If you suspect there’s an “imposter”
respirator, find out who it belongs to and ask if they received respirator from EHS
• If not, inform them of proper process & why it’s in place (e.g., EHS might be able to inform you a better way to control hazard, respirators can strain respiratory & cardiovascular systems)
• There is now an inspection finding for an “imposter” respirator
___PPE-3 Respiratory protection not appropriate / maintained / stored properly___PPE-4 Respirators used without EHS evaluation / approval
QUESTIONS? COMMENTS?