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PMC:7784787 / 7812-8278 JSONTXT

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LitCovid-PubTator

Id Subject Object Predicate Lexical cue tao:has_database_id
90 147-155 Chemical denotes elastane MESH:D011140
91 205-218 Chemical denotes polypropylene MESH:D011126

LitCovid-sentences

Id Subject Object Predicate Lexical cue
T65 0-47 Sentence denotes The masks and dummy used are shown in Figure 2.
T66 48-219 Sentence denotes The three-layer mask in Figure 2B has two outer layers each 0.4-mm thick made of 80% polyester 20% elastane with the internal filter layer being 1.0 mm 100% polypropylene.
T67 220-343 Sentence denotes The filter covers the area of the mouth and nose but around chin, cheeks and nose bridge the fabric is just a single layer.
T68 344-466 Sentence denotes Compliance with the testing methods of the CWA 17553 was claimed by the supplier but packaging was not marked accordingly.