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.
Die mediese gemeenskap is steeds nie seker hoeveel lugsuiweringstoestelle werklik help om die verspreiding van die koronavirus te stop nie. Dit ly geen twyfel nie dat hulle allergielyers kan help en al baie jare gebruik word, maar dit is baie moeiliker om die besonderhede van klein deeltjies wat COVID-19 bevat uit te filter. Geen dokter sê dat draagbare lugsuiweringstoerusting hierdie probleem kan oplos nie. Kenners beveel aan om maskers te dra en weg te bly van die samelewing as die eerste linie van verdediging. Dit is baie makliker om te verseker dat COVID-19-deeltjies nooit die lug binnedring nie as om dit uit te filtreer nadat dit versprei is. Die meeste lugsuiweringstoerusting het egter nie hierdie situasie benadeel nie.
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.
Wil net vir jou 'n idee gee. In die operasiesaal word die lug elke drie tot ses minute verander, terwyl dit in die kantoorgebou verskeie kere per uur verander word.
“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.
Om presies te wees, is dit moeilik om te bestudeer hoe om 'n venster oop te maak om ventilasie te verander. Die lugvloei in 'n binnenshuise ruimte is moeilik om te modelleer of selfs te voorspel. Die beste geboumodel ter wêreld is moeilik om die probleem van vensteropening op te los omdat die lugvloeistelsel so ingewikkeld is.Belangriker nog, die opening van vensters kan so effektief soos lugsuiweraars wees, of selfs meer effektief. Die verdunning van binnenshuise lug wat COVID-19 kan bevat met virusvrye buitelug sal die konsentrasie van die virus in die lug verminder en sodoende die kans op infeksie verminder. Navorsers sukkel nog om uit te vind hoeveel ventilasie en watter tipe die beste is. Daar is eenvoudig nie genoeg konsensus in die mediese gemeenskap nie.
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.”
Om nie al die antwoorde te hê nie, is nie ideaal nie, maar dit is beter as om voor te gee dat jy antwoorde het. Om eerlik te wees oor wat wel of nie mag werk nie, kan mense help om beter persoonlike keuses te maak oor hoe om veilig te bly. Soos baie koppe wat verband hou met lugreinigers, doen die koppe nie. Op sy beste kan hulle verwar word met 'n gevoel van veiligheid. In die ergste geval kan ioniseerders, plasma-opwekkers en elektrostatiese presipiteerders positiewe gevare veroorsaak. Hierdie toestelle laai deeltjies sodat hulle aan die oppervlak kleef in plaas daarvan om in die lug te dryf, en sodoende osoon as 'n neweproduk produseer.
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.
Die beste praktyke vir skoon lug draai om ventilasie. In 'n moderne kantoor is dit moontlik om baie redes nie moontlik om vensters oop te maak nie. Vensters kan gewoonlik glad nie oopgemaak word nie. In hierdie geval kan u die gebruik van hoëgehalte-lugfiltreertoestelle verseker. Aangesien nie-osoon-gebaseerde lugfiltrasie nie skadelike newe-effekte veroorsaak nie, is die enigste nadele van draagbare lugfiltreertoerusting koste en geraas. Die skoon lugoordragtempo (CADR) van 'n toestel vertel jou die meeste van sy doeltreffendheid. Hierdie gradering neem die doeltreffendheid van die filter en die krag van die waaier in ag om te bepaal hoeveel lug deur die filter vloei. Hoe hoër die CADR, hoe groter is die suiweringsruimte. Om die regte toerusting te koop is slegs om die regte kamergrootte te bepaal. Onthou, hoe groter die toestel, hoe sterker sal die waaier die lug sirkuleer, en hoe harder sal die klank wees. In 'n kantooromgewing moet baie geraas in ag geneem word. Die prys van 'n hoë-gehalte HEPA-lugsuiweraar begin by ongeveer $200, en die prys daarvan styg soos die CADR-vlak toeneem. Sommige mense bou selfs hul eie lugsuiweraars deur MERV-filters aan bokswaaiers te koppel vir minder as $30.
Wanneer ons te doen het met toerusting met mediese vereistes, is dit altyd belangrik om feite van fiksie te skei en om voordeel te trek uit bemarking. Produkvervaardigers wat hoop om voordeel te trek uit die groot vraag na COVID-19-versagtingstoerusting, het die mark oorstroom met draagbare lugsuiweringstoerusting. Kenners glo dat toerusting van hoë gehalte beslis nie benadeel sal word nie. Dit is inderdaad moontlik om lugsuiweraars te maak deur honderde of selfs duisende dollars aan lugsuiweringstoerusting te bestee, maar ons sal dalk nooit weet hoeveel nie. ’n Beter antwoord is om ’n masker te dra, en indien moontlik die venster oop te maak.
Propmodo verduidelik en definieer neigings vir professionele eiendomsberoepers deur nuus, navorsing, gebeure en bemarkingsdienste te kombineer.
• We believe that the future will be defined by leaders who understand the general environment of the real estate industry.
• We believe that the commercial future of real estate lies at the intersection of technology and marketing.
• We believe that the creative future of real estate lies in the intersection of user experience and design.
Postyd: 16 Maart 2021
