In the era of deadly airborne viruses, air purification equipment has now shown various shapes and sizes. At last month’s Consumer Electronics Show CES, the company introduced a new portable air filter device for your bedside, cup holder, table top, meeting room, and even hanging around your neck. Although each of these devices can purify the air, the problem is that none of them can ventilate. Science increasingly shows that if you are serious about stopping the spread of the coronavirus, masks, social distancing and opening windows may do more than expensive electronic purification equipment.
Most air purifier designs use the same basic method. There is a filter and fan. The fan draws in and circulates air through the filter. The filters in these types of equipment are usually made of paper, fiber (usually glass fiber) or some type of net, which allows it to remove contaminants such as dust and pollen well, but cannot remove gas or less. particle. It is important to remember that the work efficiency claimed by the air purifier manufacturer is accurate after laboratory testing, but it is almost impossible to recreate the specific laboratory conditions. The location, installation, flow rate and running time of the purifier will greatly affect its working effect. Ventilation is usually a big problem. After the air is “purified”, the fan circulates it out, but the air is not ventilated to other areas of the space. Therefore, air purifiers often repeatedly purify the same air in their vicinity. The smaller the device, the greater the basic problem.
Chan eil a ’choimhearsnachd mheidigeach fhathast cinnteach cia mheud inneal glanaidh èadhair a chuidicheas le stad a chuir air sgaoileadh a’ chrùin-bhìoras. Chan eil teagamh sam bith gun urrainn dhaibh daoine a tha a’ fulang le aileirdsidh a chuideachadh agus chaidh an cleachdadh airson grunn bhliadhnaichean, ach tha e tòrr nas duilghe a bhith a’ sìoladh a-mach mion-fhiosrachadh mu ghràinean beaga anns a bheil COVID-19. Chan eil dotair ag ràdh gum faod uidheamachd glanaidh èadhair so-ghiùlain an duilgheadas seo fhuasgladh. Tha eòlaichean a’ moladh a bhith a’ caitheamh masgaichean agus a’ fuireach air falbh bhon chomann-shòisealta mar a’ chiad loidhne dìon. Tha e mòran nas fhasa dèanamh cinnteach nach tèid gràineanan COVID-19 a-steach don adhar na bhith gan sìoladh às deidh dhaibh a bhith sgapte. Ach, cha do rinn a 'mhòr-chuid de uidheamachd glanaidh adhair cron air an t-suidheachadh seo.
More useful than filtration is to increase ventilation. Studies have shown that keeping the air “fresh” is one of the best ways to stop diffusion. Known as air change, the rate at which air is completely replaced in a space is a key indicator of the level of symbiosis risk. The more changes in the air, the better. Mayo Clinic professor and researcher Dr. Mark Ereth explained in our recent “Flexible Workplace” report how much air is needed to pass through a room to help eliminate ultrafine particles such as COVID-19. In an office building, there are several times an hour every three to six minutes,” he said. There is evidence that, with the aid of a central ventilation system, air purifiers increase the air exchange rate or volume. But open the windows is also like this.
Dìreach airson beachd a thoirt dhut. Anns an t-seòmar-obrachaidh, bidh an èadhar ag atharrachadh a h-uile trì gu sia mionaidean, agus ann an togalach na h-oifis tha e air atharrachadh grunn thursan san uair.
“The most important thing to consider when buying an air filter is whether the space you want to use in it already has good ventilation-then the air filter won’t increase too much,” Dr. Shelly Miller, an environmental expert, Colorado An engineer at the University of Boulder told Webmd that his research focuses on the spread of airborne diseases.
Gus a bhith mionaideach, tha e duilich sgrùdadh a dhèanamh air mar a dh ’fhosglas tu uinneag gus fionnarachadh atharrachadh. Tha an sruth-adhair ann an àite a-staigh duilich a mhodail no eadhon ro-innse. Tha am modail togail as fheàrr san t-saoghal duilich fuasgladh fhaighinn air an duilgheadas a thaobh fosgladh uinneagan oir tha an siostam sruth-adhair cho iom-fhillte. Le bhith a’ lagachadh èadhar a-staigh a dh’ fhaodadh a bhith ann an COVID-19 le èadhar a-muigh gun bhìoras lughdaichidh e dùmhlachd a’ bhìoras san adhar, agus mar sin lughdaichidh sin an cothrom gabhaltachd. Tha luchd-rannsachaidh fhathast a’ strì ri faighinn a-mach dè an ìre de fhionnarachadh agus dè an seòrsa as fheàrr. Gu sìmplidh chan eil co-aontachd gu leòr anns a’ choimhearsnachd mheidigeach.
Columbia University virologist Angela Rasmussen told Vox: “There is no perfect “safe” level of ventilation because we actually don’t know what “safe” is because we don’t know how much exposure will cause spread.”
Chan eil e math gun a bhith a’ faighinn na freagairtean gu lèir, ach tha e nas fheàrr na bhith a’ leigeil ort gu bheil freagairtean agad. Faodaidh a bhith onarach mu na dh’ fhaodadh no nach obraich daoine a chuideachadh gus roghainnean pearsanta nas fheàrr a dhèanamh a thaobh a bhith sàbhailte. Coltach ri mòran chinn co-cheangailte ri purifiers èadhair, chan eil na cinn. Aig a 'char as fheàrr, faodaidh iad a bhith air am mealladh airson mothachadh air tèarainteachd. Anns a ’chùis as miosa, faodaidh ionizers, gineadairean plasma agus precipitators electrostatach cunnartan adhartach a thoirt gu buil. Bidh na h-innealan sin a ’cur cosgais air mìrean gus am bi iad a’ cumail ris an uachdar an àite a bhith a ’fleòdradh san adhar, agus mar sin a’ toirt a-mach ozone mar fo-thoradh.
ASHRAE, a professional association that specializes in setting standards for ventilation and air-conditioning, said that when using equipment that may generate large amounts of ozone (respiratory tract irritant) as a by-product of its operation, “must be extra careful.” HEPA and ASHRAE recommend avoiding the use of any air purification devices that produce ozone as a by-product of cleaning indoor air in living spaces.
Tha na cleachdaidhean as fheàrr airson èadhar glan timcheall air fionnarachadh. Ann an oifis ùr-nodha, is dòcha nach bi e comasach fosgladh uinneagan airson iomadach adhbhar. Mar as trice, chan urrainnear uinneagan fhosgladh idir. Anns a ’chùis seo, faodaidh tu dèanamh cinnteach gun tèid innealan sìoltachaidh èadhair àrd-inbhe a chleachdadh. Leis nach eil sìoladh èadhair neo-stèidhichte air ozone a’ toirt a-mach frith-bhuaidhean cronail, is e cosgais agus fuaim na h-aon eas-bhuannachdan a thaobh uidheamachd sìoltachaidh èadhair so-ghiùlain. Tha an ìre gluasaid èadhair glan (CADR) de dh’ inneal ag innse dhut a’ mhòr-chuid de a èifeachdas. Bidh an rangachadh seo a’ toirt aire do èifeachdas a’ chriathrag agus cumhachd an neach-leantainn gus faighinn a-mach dè an ìre de èadhar a tha a’ sruthadh tron chriathrag. Mar as àirde an CADR, is ann as motha a bhios an àite glanaidh. Chan eil ceannach an uidheamachd cheart ach airson meud an t-seòmair cheart a dhearbhadh. Cuimhnich, mar as motha an inneal, is ann as làidire a bhios an neach-leantainn a ’cuairteachadh an èadhair, agus mar as àirde a bhios am fuaim. Ann an àrainneachd oifis, feumar beachdachadh air tòrr fuaim. Bidh prìs inneal-glanaidh adhair HEPA de chàileachd àrd a’ tòiseachadh aig timcheall air $200, agus bidh a phrìs ag èirigh mar a bhios ìre CADR ag èirigh. Bidh cuid de dhaoine eadhon a’ togail an luchd-glanaidh adhair aca fhèin le bhith a’ ceangal sìoltachain MERV ri luchd-leantainn bogsa airson nas lugha na $30.
Nuair a bhios tu a’ dèiligeadh ri uidheamachd le riatanasan meidigeach, tha e an-còmhnaidh cudromach fìrinn a sgaradh bho fhicsean agus buannachd fhaighinn bho mhargaidheachd. Tha luchd-saothrachaidh toraidh a tha an dòchas prothaid fhaighinn bhon iarrtas mòr airson uidheamachd lasachaidh COVID-19 air tuil a thoirt don mhargaidh le uidheamachd glanaidh èadhair so-ghiùlain. Tha eòlaichean den bheachd nach tèid uidheamachd àrd-inbhe a mhilleadh gu cinnteach. Tha e gu dearbh comasach innealan-glanaidh èadhair a dhèanamh le bhith a’ cosg ceudan no eadhon mìltean de dhollairean air uidheamachd glanaidh adhair, ach is dòcha nach bi fios againn cia mheud. Is e freagairt nas fheàrr masg a chaitheamh, agus ma ghabhas e dèanamh, fosgail an uinneag.
Tha Propmodo a’ mìneachadh agus a’ mìneachadh ghluasadan airson proifeiseantaich thogalaichean malairteach le bhith a’ cothlamadh naidheachdan, rannsachadh, tachartasan agus seirbheisean margaidheachd.
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Post time: Màrt-16-2021
