CV-19 Guardian Respirator Adaptor

thingiverse

Many individuals including healthcare professionals and first responders are turning to improvised masks for protection in response to shortages in NIOSH-approved PPE during the COVID-19 crisis. To help provide more controlled protection under these circumstances, Dominion Engineering, Inc. (DEI) has developed a custom adaptor that can convert a standard snorkel mask into a reusable, full face respirator. This conversion effectively protects the eyes, nose and mouth from airborne particles using commonly available materials. We have coordinated independent testing to confirm that converted masks pass a standard mask fit test and to assess the efficacy of commonly available filter insert materials. To assist individuals who may lack access to approved PPE such as N95 respirators and face shields, DEI is publishing the CV-19 Guardian Respirator Adaptor design here, along with instructions for making a converted mask using this adaptor. For additional technical information, including filter efficacy testing results for commonly available materials that can be used to make filter inserts for this adaptor, refer to the attached PDF file. DEI is not responsible for the user's safety and well-being when using improvised devices of this type. Improvised devices are not NIOSH-approved and users must bear all liability associated with their use. DEI makes no warranty that the use of these devices will protect against COVID-19 or any other airborne viruses.