一、紫外線燈能殺死新冠病毒嗎
根據(ju)新(xin)發(fa)布(bu)的(de)(de)(de)《新(xin)型(xing)冠狀(zhuang)病(bing)(bing)(bing)(bing)(bing)毒(du)(du)肺炎(yan)診療快速(su)指南》,75%酒精、乙醚、氯(lv)仿、甲(jia)醛(quan)、含氯(lv)消毒(du)(du)劑、過氧(yang)(yang)乙酸(suan)和(he)紫(zi)(zi)外(wai)(wai)線(xian)(xian)(xian)均(jun)可滅(mie)活病(bing)(bing)(bing)(bing)(bing)毒(du)(du)。醫用和(he)家(jia)(jia)用紫(zi)(zi)外(wai)(wai)線(xian)(xian)(xian)燈(deng)(deng)在(zai)功效上(shang)有(you)(you)(you)區別,家(jia)(jia)用紫(zi)(zi)外(wai)(wai)線(xian)(xian)(xian)燈(deng)(deng)的(de)(de)(de)有(you)(you)(you)效消毒(du)(du)面(mian)積需要根據(ju)具體說明(ming)書判定。在(zai)臨床上(shang),新(xin)型(xing)冠狀(zhuang)病(bing)(bing)(bing)(bing)(bing)毒(du)(du)對熱和(he)紫(zi)(zi)外(wai)(wai)線(xian)(xian)(xian)是比較(jiao)敏感(gan)的(de)(de)(de),一般情況下,56℃30分鐘可以(yi)殺滅(mie)病(bing)(bing)(bing)(bing)(bing)毒(du)(du);新(xin)型(xing)冠狀(zhuang)病(bing)(bing)(bing)(bing)(bing)毒(du)(du)對于紫(zi)(zi)外(wai)(wai)線(xian)(xian)(xian)也(ye)是敏感(gan)的(de)(de)(de),可以(yi)用紫(zi)(zi)外(wai)(wai)線(xian)(xian)(xian)燈(deng)(deng)進行室內病(bing)(bing)(bing)(bing)(bing)毒(du)(du)的(de)(de)(de)殺滅(mie)。醫用紫(zi)(zi)外(wai)(wai)線(xian)(xian)(xian)燈(deng)(deng)能滅(mie)活新(xin)型(xing)冠狀(zhuang)病(bing)(bing)(bing)(bing)(bing)毒(du)(du),醫用紫(zi)(zi)外(wai)(wai)線(xian)(xian)(xian)燈(deng)(deng)的(de)(de)(de)發(fa)光(guang)譜線(xian)(xian)(xian)主要有(you)(you)(you)254nm和(he)185nm兩條,254nm紫(zi)(zi)外(wai)(wai)線(xian)(xian)(xian)通過照(zhao)射微生物的(de)(de)(de)DNA來殺滅(mie)細菌,185nm紫(zi)(zi)外(wai)(wai)線(xian)(xian)(xian)可將空(kong)氣中的(de)(de)(de)氧(yang)(yang)氣變成臭(chou)氧(yang)(yang),臭(chou)氧(yang)(yang)本身(shen)又具有(you)(you)(you)殺菌作用。
二、紫外線燈消毒注意事項
紫外線消毒燈使用前必須先通電3~10min,等發光穩定后方可應用;使用時不可使紫外線照射到眼睛上,以免造成傷害;裝卸燈管時,避免用手直接接觸燈管表面,以防石英被玷污而影響其透過紫外線能力。紫外線燈在使用后和日常應多用紗布或脫脂棉等蘸上酒精擦拭燈管,以保持其表面潔凈透明。消毒期間家庭成員一定要離開房間,避免紫外線照射到人身上造成損傷,并且應注意購買正規優質的紫外線燈品牌產品。
三、紫外線燈對人體的危害
紫(zi)外(wai)(wai)(wai)線(xian)燈(deng)能殺菌(jun)消(xiao)毒,不(bu)過需要(yao)正(zheng)確(que)使(shi)用,否則會帶來較嚴(yan)重(zhong)的危(wei)害。常(chang)見的危(wei)害有(you):皮膚暴露在(zai)紫(zi)外(wai)(wai)(wai)線(xian)消(xiao)毒燈(deng)下(xia),會引(yin)起(qi)紅腫(zhong)、疼(teng)痛、脫屑等改變。如(ru)果長(chang)時(shi)間(jian)照射,可能會引(yin)起(qi)皮膚的癌變。紫(zi)外(wai)(wai)(wai)線(xian)消(xiao)毒燈(deng)照射眼睛(jing)還(huan)會引(yin)發眼睛(jing)的結膜(mo)炎、角膜(mo)炎,使(shi)眼睛(jing)出現紅腫(zhong)、疼(teng)痛、流淚(lei)的現象,長(chang)時(shi)間(jian)應用,很可能會誘發白內(nei)障(zhang)。所以,在(zai)使(shi)用紫(zi)外(wai)(wai)(wai)線(xian)消(xiao)毒燈(deng)時(shi),房(fang)間(jian)內(nei)盡量不(bu)要(yao)有(you)人。
四、紫外線燈消毒后可以馬上進屋嗎
不可以。因(yin)為高強度(du)的(de)紫(zi)外(wai)線燈在(zai)使用后,會(hui)使得外(wai)界空氣變(bian)成(cheng)臭(chou)氧,而它們會(hui)對人(ren)體(ti)健康造(zao)成(cheng)一定傷害,因(yin)此要等到臭(chou)氧分解后才能進(jin)屋,具體(ti)的(de)時間(jian)需看臭(chou)氧的(de)量以及(ji)通(tong)風效(xiao)果來(lai)確定,在(zai)通(tong)風效(xiao)果良好的(de)情況下,幾分鐘(zhong)后就能進(jin)屋。