Mamiriro eHEPA sefa achazadzisa zvinotevera zvinodiwa:

1, kana yakaenzana neyekushongedza layer kana iyo yekuyerera layer yakarongedzwa pamusoro pemhepo yekugovera pamusoro pechikamu chezasi cheplenum, iyosefachiyero chakazara hachifanirwe kunge chiri pasi pe0.75.

2. Kana yakarongedzwa parutivi rweplenum, inogona kurongwa kune rumwe rutivi kana kune rumwe rutivi.Chiyero chakazara chesefa padivi hachifanirwe kunge chiri pasi pe 0.75, uye mhepo inoyerera mu plenum inofanira kunyatsosanganiswa.

3. Kana yakadzikira nekureba uye kuchengetedza kwemukati zvisingabvumirwe, iyo sefa inogona kurongeka kunze kweplenum nemhepo yekupa nzvimbo ine leakage kuramba basa, asi inofanirwa kunge iri padyo neplenum sezvinobvira, uye kuyerera kwemhepo mukati. plenum inofanira kusanganiswa zvakakwana.Chiyero chakazara chemhepo yakachena chinofanira kunge chiri pasi pe0.85.

4. Kune nzvimbo dzakachena dziri pasi pegiredhi 100, kana chiteshi chemhepo chinenge charongwa nechepakati, danho rekupedzisira.HEPA sefamuchiteshi chekugovera mhepo chinogona kurongedzerwa nechepakati kana kuparadzirwa, asi iyo yekuyerera yekugovera layer inofanirwa kumisikidzwa pamhepo yekugovera pamusoro.

5. Makamuri ose akachena mukamuri yekushanda yelaminar inoyerera inofanira kugamuchira bilateral yakaderera mhepo yekudzoka;Kana kureba pakati pemativi maviri hakupfuuri 3m, kudzoka kwemhepo pasi perutivi rumwe kunogona kushandiswa, asi makona mana kana mativi mana haafaniri kushandiswa.Mikoto yakachena nemikoto yakachena inogona kushandisa mhepo inokwira.

6. Mhepo yekudzoka kwemukati inofanira kushandiswa mumakamuri ose e-100-level laminar flow operating, uye hapana yakasara yekumanikidza valve inofanira kuiswa kuti idzorere mhepo kumukoto.

7. Mhepo yepamusoro inofanira kuiswa mu 100-level laminar flow operating room, uye nzvimbo yacho inofanira kunge iri pamusoro pemusoro wemurwere.Iko kuputika kwekumhanya kwekubuda kwemhepo hakufanire kunge kwakakura kupfuura 2m / s.