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Can We Innovatively Modify the Surgical Helmets to Protect Against the Droplets and Aerosols of COVID-19?
Dipit Sahu1, Vaibhav Bagaria1, Vaibhavi Rathod2
1Department of Orthopaedics, Sir H.N. Reliance foundation Hospital, Mumbai, India.
Abstract:
We tested the filtration efficiency of Stryker T5 surgical helmets with and without the addition of a filter medium. Two particle counters were used to count the particles of sizes .5 μm, 1 μm, and 5 μm, both inside and outside the Stryker T5 helmet, concurrently. The total inward leakage (TIL) for the helmet with and without the filter was zero for 5 μm particles at all time points. The TIL (3.4) for the .5 μm particles decreased significantly after application of the filter (1.7; P = .007). We recommend that an N95 should be used inside the helmet system.
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