... diaper, surgical coat, mask, etc. you can use the spray method, the concentration is 10-30mg/L.3. Anti-bacteria treatment ... , tympanitis, etc, the concertration of nano silver disinfectant is100-250mg/L.4. Culture relic, plant or animal specimen protection: Nano Silver ... is quite suit for protection or storage of the plant and animal specimen, the concentration is 25-100mg/L, by spraying method ...