1.45° oblique vertical sealing, ʻoi aku ka nani o ka sila ʻana;
2. ʻAʻole pili pololei ka poloka sila i ka paipu hoʻokumu i ka wā e sila ai e pale aku i ka hōʻino ʻana a me ka hōʻino ʻana o nā mea
4. Mīkini lālani nui-wikiwiki, hiki i ka wikiwiki ke hiki i 50 mau ʻoki/lālani/minuke;
5. Hoʻohui i ka hana hoʻopihapiha naikokene e like me nā pono maoli, ʻoi aku ka liʻiliʻi o ke koena o ka oxygen ma mua o 3%;