Hunan dehumidifier / humidifier Changsha / Changde dehumidifier price / wet wells dehumidifier / Chenzhou] dehumidifier moisture, mold, oxidation and corrosion protection requirements of the hazard 
 1, the optical lens to enhance the performance of modern optical lens, the lens surface layers are deposited there by the polymer composition of the membrane. This layer of synthetic material for fungal growth and reproduction provides a wealth of nutrition, fungi break down the surface of the optical lens membrane component for growth and reproduction, takes the shape of dendritic hyphae spread on the surface of the lens, the lens becomes opaque and the imaging performance poor, until the mycelium covered the entire lens. To ensure the safety of the optical lens, the lens should be stored in a relative humidity of 40% of the environment. 
 2, magnetic recording materials, magnetic recording materials are made of polymer material with a base, which includes some of plasticizer, dispersing agent, were suitable for fungal decomposition of absorption, although the magnetic recording material in the production of more or less preservatives added, but the so-called "mold disk" does not guarantee that the disk completely mildew, but the difference between probability and speed only. In fact as long as the relative humidity controlled at 40%, can achieve safe storage purposes. 
 3, video film film information carrier by the base and surface polymer films deposited organic light-sensitive coating material composition, suitable for fungal decomposition. The surface of the photosensitive membrane, especially the most vulnerable to fungal attack. Light-sensitive emulsion layer of photographic film emulsion hydrolysis also easy to damp, damaged film images, mildew, the fungal excretion of oxalic acid substances can erode Silver particles and dye image. Ideal environment for long-term preservation of photographic film is 40% relative humidity, temperature 1-8 degrees Celsius, air purification, can achieve safe storage purposes. 
 4, optical recording media, optical recording of electronic information through the concave and convex pits in the surface of the disc recording means records the signal, and then coated with aluminum to reflect the signal, but the surface of the disc with a plastic protective film traces of moisture penetrating the nature of In high humidity environment of aluminum will be the result of water produced by the brightness of the role of electrochemical oxidation, leading to decrease in brightness, resulting in the disc not read or misread signals, causing normal playback can not use scrap. So for the oxidation, the disc stored in 40% relative humidity environment, can ensure safety. 
 5, the vast majority of electronic products, electronic devices are required to be stored in dry conditions. Otherwise, the capacitor will reduce capacity when wet, damp, easy to produce integrated circuits and other internal fault; moisture will make the finger computer's CPU and board and electronic equipment connector pins and oxidation, leading to poor contact or weld knot of variation crystal produces oxidation. Electronic device placed in 50% relative humidity environment, can ensure safety. 
 6, precision machinery, precision instruments and machinery, high-brightness are many kinds of metal, such as spectrometer, high precision day equal precision instruments, gauge blocks and other precision measuring tools, and other precision measuring, metering, processing, laboratory and other precision machinery and high-intensity metal items, even if the trace of water caused by oxidation, also inaccurate, the decline in accuracy, decrease in brightness, resulting in decreased performance or even scrapped, and modern precision instruments tend to have electronic components, moisture can lead to later failure. Be stored in 50% relative humidity, can guarantee security. 
 7, copier toner powder material, powder pharmaceuticals, powder metallurgy materials, chemical materials, as well as milk powder, coffee powder materials, moisture will produce deliquescence, agglomeration, or traits and chemical composition have changed, leading to loss of efficacy, thus affecting the use of or scrapped. Be stored in 30-40% relative humidity, can guarantee security. 
 8, chemicals and pharmaceuticals, chemicals, spices and many types of medicines can cause when wet ingredients change traits, some of Western medicine, Chinese medicine, Chinese herbal medicine and other wet ingredients and will cause reduced efficacy or adverse changes in long mold will result in scrap. Aroma of spices will lose, the binder will cure and so transient. Be stored in 50% relative humidity environment can guarantee safety. 
 9, paper, wood, silk, leather products, paper products are widely used for archival material, literature, artifacts, paintings, stamps, photographs and all kinds of important bills, filter paper, test strips, etc. Wood products, silk products, leather products for all aspects of life and a large number of works of art and antiques. They are rich in cellulose, damp, mold can be broken down into glycogen absorption, so easily lead to fungal attack. Chemical test strips also due to composition changes resulted in the normal direction. Be stored in 40% relative humidity environment can guarantee safety. 
 10, tobacco, food, tea, tobacco seed, grain, tea, seeds, etc. can easily damp damage: tobacco, food, tea will taste musty, moldy seed will not germinate. Particularly in large storage of the goods once produced a large area of ??mold bad position, causing the loss is even more shocking. And store it at 50% relative humidity storage environment with timely turn, can ensure safety. 
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