Nkọwa ngwaahịa
A na-eme ụgbọ elu Laryngeal Mask Airways maka otu ojiji sitere na ihe ọkwa ahụike
, nwere ezigbo biocompatibility. Ngwaahịa nwere ụdị 5:
Nkịtị PVC Laryngeal mkpuchi ụgbọ elu-OTU ụzọ,
Nkịtị silicone laryngeal nkpuchi-OTU ụzọ,
PVC Laryngeal Mask Airways gbasiri ike-Ụzọ abụọ,
Ihe mkpuchi mkpuchi laryngeal silicone gbasiri ike-Ụzọ abụọ,
Ihe mkpuchi mkpuchi laryngeal nke silicone ike-OTU ụzọ).