The variable is related to speech of a user of the facepiece.
Lastly, the facepiece mandrel is removed from the formed cannula.
Following curing, the facepiece mandrel and formed cannula are slide along the mouthpiece/nasal mandrels until the facepiece mandrel and formed cannula are removed therefrom.
A facepiece insert and facepiece combination suitable for use as a respiratory mask.
A filtering half mask is one in which the facepiece consists entirely or substantially of filter material or comprises a facepiece in which the main filter(s) form an inseparable part of the device.
airtight fit to the face
A face piece/reservoir combination that is molded as one piece.
The face part (4) of the template (2) is provided wiht a lining-up means (11) that is precisely positioned on the outer surface of the face part.
A respiratory protective device in which a face piece (11) is located within the volume of a filter canister (10).
Common surgical face masks and FFP3 (FFP=Filtering Face Piece) reduce exposure to nanoparticles.
A filtering face-piece respirator 10 that includes a harness 14, a mask body 12, and an exhalation valve 38.
Contaminated air that has been purified in the filter canister (10) is ducted in an airtight manner through a hollow assembly (18) into the face piece (11).
The mask (10) has a large opening (20) formed in the forward part thereof, and a rigid plate-like supporting structure (22) carried by the face piece closing the opening.
A filtering face-piece respirator that has a harness and a mask body where the mask body includes a filtering structure and a support structure.
The facepiece mandrel has a pair of conical holes, in an intermediate section thereof, for receiving a leading end of one mouthpiece/nasal mandrel.
Whether the respirator passes or fails the test is based simply on detecting leakage of the test substance into the face piece.
Whether the respirator passes or fails the test is based simply on subjective detection of the challenging agent (Bitrex) into your face piece
Whether the respirator passes or fails the test is based simply on you detecting leakage of the test substance into your facepiece.
The filter canister (10) can be in the form of a hollow section or sections which fit around all or part of the face piece (11) or on either side thereof.
By integrating the face piece and reservoir bag into one single piece, the mask conserves space and reduces the number of parts while maintaining adequate reservoir volume .
Requêtes fréquentes français :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
Requêtes fréquentes anglais :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
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