May 2020
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132 Reads
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7 Citations
Applied Biosafety
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May 2020
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132 Reads
·
7 Citations
Applied Biosafety
... The greatest reduction in particles of all sizes was achieved using two layers of H600 material, a sterilization wrap found in hospital settings and used to demonstrate an N95-equivalent facemask. 11 The added material reduced airflow through the helmet, however, and allowed CO 2 inside the PAPR to stabilize at 2.3 ± 0.3% when worn by a volunteer. The increased differential pressure resulting from adding filter layers over the air intake of the PAPR helmet is expected to reduce the operational lifetimes of the helmet blower motor and battery, which further emphasizes the temporary emergency nature of the solution described. ...
May 2020
Applied Biosafety