N95, KNP5, FFP2, P2 ke eng?
Pele ho tsohle, tsena ke litekanyetso tsa mask, eseng letšoao la mask a itseng, eseng mohlala oa mask a itseng, eseng mosebetsi oa mask a itseng, empa tekanyetso ea mask, e leng tekanyetso!
Litekanyetso tse fapaneng tsa mask lefatšeng hajoale:
- N95 (United States NIOSH-42CFR84)
- FFP2 (Europe EN149-2001)
- KN95 (ChinaGB2626-2006)
- P2 (Australia/New Zealand AS/NZA1716:2012)
- Korea 1st class (Korea KMOEL -2017-64)
- DS (Japan JMHLW-Tsebiso 214,2018)
Litekanyetso tsee li emela eng?
| Setifikeiti/ Sehlopha (Tse tlwaelehileng) | N95 (NIOSH-42CFR84) | FFP2 (EN 149-2001) | KN95 (GB2626-20 06) | P2 (AS/NZ1716:2012) | Korea 1StSehlopha (KMOEL - 2017-64) | DS (Japan JMHLW-Tsebiso 214, 2018) |
| Ts'ebetso ea sefe - (e tlameha ho ba ≥ X% e sebetsang hantle) | ≥ 95% | ≥ 94% | ≥ 95% | ≥ 94% | ≥ 94% | ≥ 95% |
| Moemeli oa liteko | NaCl | NaCl le oli ea parafine | NaCl | NaCl | NaCl le oli ea parafine | NaCl |
| Sekhahla sa phallo | 85 L/min | 95 L/mots | 85 L/min | 95 L/mots | 95 L/mots | 85 L/min |
| Kakaretso ea ho lutla ka hare (TIL) * - e lekoa ka lithuto tsa batho e mong le e mong ea etsang boikoetliso | N/A | ≤ 8% ea ho lutla (arithmetic mean) | ≤ 8% ea ho lutla (arithmetic mean) | ≤ 8% ho lutla (ho bolela motho ka mong le lipalo) | ≤ 8% ea ho lutla (arithmetic mean) | Inward Leakage e lekantsoe mme e kenyelelitsoe ho Litaelo tsa Basebelisi |
| Ho hanyetsa ha inhalation - ho theoha ho hoholo ha khatello | ≤ 343 Pa | ≤ 70 Pa (ka 30 L/min)≤ 240 Pa (ka 95 L/min)≤ 500 Pa (ho koala) | ≤ 350 Pa | ≤ 70 Pa (ka 30 L/min)≤ 240 Pa (ka 95 L/min) | ≤ 70 Pa (ka 30 L/min)≤ 240 Pa (ka 95 L/min) | ≤ 70 Pa (w/valve)≤ 50 Pa (ha ho belofo) |
| Sekhahla sa phallo | 85 L/min | E fapaneng - sheba ka holimo | 85 L/min | E fapaneng - sheba ka holimo | E fapaneng - sheba ka holimo | 40 L/min |
| Ho hanyetsa ho hema - ho theoha ho hoholo ha khatello | ≤ 245 Pa | ≤300 Pa | ≤ 250 Pa | ≤ 120 Pa | ≤300 Pa | ≤ 70 Pa (w/valve)≤ 50 Pa (ha ho belofo) |
| Sekhahla sa phallo | 85 L/min | 160 L/min | 85 L/min | 85 L/min | 160 L/min | 40 L/min |
| Tlhokahalo ea ho lutla ha valve ea ho hema | Sekhahla sa ho lutla ≤ 30 mL/min | N/A | Depressurizatio n ho 0 Pa ≥ 20 sec | Sekhahla sa ho lutla ≤ 30 mL/min | tlhahlobo ea pono ka mor'a 300 L / min bakeng sa 30 sec | Depressurizatio n ho 0 Pa ≥ 15 sec |
| Ho sebelisoa matla | -245 Pa | N/A | -1180 Pa | -250 Pa | N/A | -1,470 Pa |
| Tlhokahalo ea tumello ea CO2 | N/A | ≤ 1% | ≤ 1% | ≤ 1% | ≤ 1% | ≤ 1% |
Litlhaloso
Tshebetso ea sefe- filthara e ea hlahlojoa ho lekanya phokotso ea likhakanyo tsa li-aerosol tse khethehileng moeeng tse fetang sefeneng.
Moemeli oa liteko- aerosol e hlahisoang nakong ea tlhahlobo ea ts'ebetso ea filthara.
Kakaretso ea ho lutla ha ka hare (TIL)- palo ea aerosol e khethehileng e kenang sefahlehong sa ho phefumoloha se lekiloeng ka ho kenella ka bobeli ho filthara le ho lutla ha sefahleho, ha motho ea e apereng a ntse a ikoetlisa ka kamoreng ea liteko.
Inward leakage (IL)- palo ea aerosol e khethehileng e kenang sefahlehong sa phefumoloho e lekiloeng, ha ea apereng a etsa phefumoloho e tloaelehileng bakeng sa metsotso ea 3 ka kamoreng ea teko.Teko ea boholo ba aerosol (palo ea bophara bo bohareng) e ka ba 0.5 micro meter.
Ho theoha ha khatello- moea oa ho hanyetsa o kenngoa ha o ntse o feta ka har'a seaplane, joalo ka mochini oa ho hema.
Ho ipapisitsoe le tafole e kaholimo, hoa utloahala ho nka China KN95, AS/NZ P2, Korea 1st Class, le Japan DS FFRs e le "e lekanang" le US NIOSH N95 le li-respirators tsa Europe FFP2, bakeng sa ho sefa likaroloana tse se nang oli tse kang tse hlahang. ho tsoa mellong e hlaha, PM 2.5 tšilafalo ea moea, ho foqoha ha seretse se chesang, kapa li-bioaerosols (mohlala, livaerase).Leha ho le joalo, pele ba khetha mochine o thusang ho phefumoloha, basebelisi ba lokela ho shebana le melao le litlhoko tsa bona tsa tikoloho ea tšireletso ea ho phefumoloha kapa ba buisane le balaoli ba lehae la bona bakeng sa tataiso ea khetho.
2020-05-09
