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| Relative Humidity | Suitable storage of items |
| 60%~50% | Paintings, antiques, paper money, old books, Fax paper, copy paper |
| 50%~40% | Camera, video cameras, lenses, microscopes, endoscopes, binoculars, magnetic tape, disks , records, film, negatives, positive film, musical instrument, stamps, furs, medicinal materials, tea , coffee, cigarette etc. |
| 40%~20% | Precision dies, measurement instruments, all electronic parts, pc boards, metallic powders, semiconductors, medical supplies etc. |
| 20%or less | Sample, standard measuring tool, seeds, pollen, seedlings etc. |
| 10%~20% | Electronic Components,IC,BGA,etc. |
| 10% or less | Particularly sensitive to humidity of materials, such as requiring a higher IC, BGA, etc. |
