Skip to main content
. Author manuscript; available in PMC: 2018 Oct 23.
Published in final edited form as: J Int Soc Respir Prot. 2017;34(2):69–80.

Figure 9:

Figure 9:

Force relaxation of a thermoplastic elastomer N95 FFR strap measured over a period of several days. The sample was held at λ = 1.5 for several days, with brief relaxation periods at 72 hours and 108 hours.