Èske Bug Spray Ekspire?

Li toujou yon sipriz bèl lè w ap chita sou plaj la oswa randone nan yon pak nasyonal sèlman jwenn ke marengwen yo, mouch sab ak tik ou espere yo pa mòde. Men, li pa tèlman bèl yo ap depanse $ 20 oswa plis sou yon boutèy konplè nan espre ensèk, sèlman jwenn ke potansyèl li yo te vo lè li lè yo sèvi ak li.

Erezman, bon nouvèl la se ke pandan ke pi flite ensèk ak ensèk repouse repouse fè ekspire, li pran yon tan trè lontan. Ak dat ekspirasyon an - si gen yon sèl sou boutèy la - pa reyèlman vle di anpil lòt pase "li pa ka travay byen tou.

Ki sa ki Bug Spray dire pi long la?

Konbyen tan espre pinèz ou dire sitou vini desann nan engredyan li yo ki kenbe pinèz yo nan bay, ke yo rele tou engredyan yo aktif. DEET (N,N-diethyl-meta-toluamide) se engredyan aktif nan anpil repouse ensèk fò, espesyalman sa yo ki te itilize pa hikers oswa kanpè nan bwa gwo twou san fon oswa forè epi li gen, teyorikman, yon lavi etajè enfini.

Sa a se paske kantite LAjan an nan DEET pa gen anyen fè ak ki jan byen ensèk nuizib travay; li detèmine konbyen tan li fonksyone. Dapre Inivèsite Lekòl Michigan nan Medsin, yon espre ensèk ak 20 pousan DEET ap pwoteje pou apeprè senk èdtan; flite ak 7 pousan DEET ap pwoteje pou de oswa twa èdtan. Aparamman, se poutèt sa ou ta dwe sote solèy-ensèk nuizib; ekran solèy la ta dwe aplike fason pi souvan pase flite ensèk.

Picaridin, yon altènatif komen nan DEET , tou te gen yon lavi prèske kontinuèl, ak IR3535 gen yon lavi etajè nan anviwon dezan anvan li kòmanse kraze.

Sa te di, pifò mak, tankou Ranger Repllant ak Koupe! rekòmande ou pou nenpòt espre ensèk ki pi gran ke twa ane, menm si Sawyer mak pwomèt yon lavi etajè 10-ane lè estoke kòrèkteman.

Aprann plis sou bò teknik la nan ensèk repouse, ekri pa Suzie Dundas isit la.

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Both Consumer Reports and the Environmental Working Group (EWG) suggest that oil of lemon eucalyptus and picaridin can each serve as an alternative to DEET.

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