Ihe nchacha ikuku maka covid-19(HEPA Filter paper)

1.Teknụzụ nzacha HEPA
HEPA (High arụmọrụ particulate air filter), ya bụ, elu arụmọrụ air filter, HEPA e ji ikuku nwere ike ịgafe, ma ezi ahụ nwere ike ịgafe. Usoro ọkwa ya kachasị elu nwere ike ibelata njupụta nke urughuru na ugboro nde 1 nke ikuku ime ụlọ nkịtị.

Ọgụgụ 1 Ụkpụrụ nke nchacha ikuku HEPA

Ọkwa nke nzacha na-adabere na nha nha nha nke nzacha nzacha na arụmọrụ nzacha. Ụfọdụ oge dị oke mkpa chọrọ ọkwa kachasị elu nke usoro nzacha, dị ka ụlọ ọrụ ahụike, ụlọ ọrụ semiconductor na-emepụta ihe, wdg. Ma maka ọtụtụ ihe nkiri, ihe nzacha nke ọkara na ọkwa dị elu nwere ike iburu n'uche nguzozi nke arụmọrụ interception na ikuku ikuku. Mgbe nyochachara, anyị ahọrọla ihe nzacha ọkwa HEPA13 (akara ule gụnyere akara nzacha: H11-H14, U15, U16 (EN1822)) iji mee ka ikuku dị ọcha na ngwa ọha.

2. Gịnị bụ mmetụta nke ultraviolet ụzarị na nje na nje bacteria?
Ìhè anyanwụ nwere ìhè dị iche iche ogologo ebili mmiri, sitere na infrared (okpomọkụ) na ìhè a na-ahụ anya ruo ultraviolet (ọkụ anwụ). Nnyocha nnwale egosila ogologo oge na ụzarị ultraviolet nwere ike ibibi nje bacteria na-efe efe nke ọma. Kpọmkwem, ultraviolet ụzarị na-ekewa n'ime atọ ranges, na ala nke wavelength, elu ike. UV-A nwere ike ime ka ịcha akpụkpọ anụ, ka oge na-aga, ọ ga-eme ka mmebi akpụkpọ ahụ dịkwuo elu na ịka nká. Ultraviolet-B nwere ike ime ka anwụ na-acha, ma ọ dịkwa mkpa ka ụmụ mmadụ na-emepụta ihe na-emepụta vitamin D. Ultraviolet-C bụ ike kachasị elu ultraviolet band, nke ozone oyi akwa na ikuku na-ehichapụ. Ọ bụrụ na enweghị ozone oyi akwa, anyị kwesịrị ibi n'ime ụlọ. Ọ na-emerụ ndụ ọ bụla ekpughere na band ultraviolet-C.

Igwe ultraviolet-C nwere ike imebi DNA na RNA n'ọkwa molekul. Mmetụta a kacha pụta ìhè na ultraviolet wavelengths gburugburu 250nm. Ya mere, enwere ike iji eriri ultraviolet-C mee ka nje virus ahụ gbuo ma ọ bụ gbochie nje ahụ imepụtaghachi ma gbochie mgbasa nke ọrịa ahụ.

Ọgụgụ 2 Ụzarị ultraviolet na-agbanwe nhazi nke DNA/RNA (Isi Iyi: NASA)

Mgbe ikuku mercury na-enwe obi ụtọ site na ọkụ eletrik, ọ na-ewepụta ìhè ultraviolet 253.7nm. A na-eji nke a mee ihe maka oriọna fluorescent ruo ogologo oge. Mgbapụta a ga-eme ka mkpuchi phosphor dị na mmanya ọkụ na-egbuke egbuke, si otú ahụ gbanwee ụzarị ultraviolet ka ọ bụrụ ìhè a na-ahụ anya, nke enwere ike iji ọkụ. Ihe mkpuchi na-ekpuchi UV nwere ike igbochi radieshon ọ bụla kpafuru akpafu. oriọna UV-C dabere na Mercury na-eji otu ụkpụrụ ahụ eme ihe, mana kama phosphor, ha na-eji iko na-adịghị anabata UV, nke na-enye ohere ịhapụ UV-C. Otu ọghọm dị na oriọna mercury bụ na ha na-ekupụtakwa na 185nm, nke ga-emepụta ozone, ụdị oxygen tri-molecular. Ọ bụ ezie na ọ na-echebe anyị pụọ n'ụzarị ultraviolet n'ebe dị elu ma na-eme ihe dị ka ọgwụ fungicide na ngwa ụfọdụ, ozone bụkwa ihe na-akpasu iwe na iku ume. Ya mere, a na-emeso ọtụtụ bulbs UV-C ka ọ na-amịpụta ikuku 185nm. Enwere ike ịmepụta ụzarị ultraviolet site na diodes na-enye ọkụ (LED), arụmọrụ na ndụ ha na-akawanye mma mgbe niile.