Unverified88% confidenceTradeoffTime unknown
浓度越高持续时间越长但皮肤刺激和气味风险越大——日常城市通勤/短时户外用10-15%足够，长时间野外或疾病流行区才需20-30%
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88%
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Unverified浓度越高防护越久但皮肤刺激和气味越重：城市通勤用10-15%低浓度（3-4小时）足够，户外全天暴露才需要30%以上并配合补涂91% similarUnverified浓度与持续时间权衡：高浓度DEET(50%+)防护更持久但皮肤刺激大、气味重，日常城市及短途出行20-30%已足够，无需追求高浓度82% similarUnverified浓度越高防护时间越长但对皮肤刺激和气味负担越大，普通场景20%浓度已够，只有长时间无法补涂的野外才需要高浓度81% similarUnverifiedDEET浓度越高防护时间越长但对皮肤刺激和塑料腐蚀性也越强，日常城市通勤选10-15%，热带丛林重度环境才需30%以上78% similarUnverified有效成分浓度越高持久性越强但气味和皮肤刺激越大——短途通勤选低浓度(10%DEET/驱蚊酯)，全天野外选高浓度(20-30%)配合防蚊长袖，避免单纯堆高浓度78% similar
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