The Fisher&Paykel FlexiFit 431 mask is a full face mask. A cursory search on CPAPtalk contains many remarks that it is noisy, constructed at minimum cost (i.e. cheap) and has been replaced by Fisher&Paykel FlexiFit 432Fisher&Paykel FlexiFit 432.
Graph IRI | Count |
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http://dbkwik.webdatacommons.org | 5 |