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Anti-fog tips for goggles and analysis of fogging causes.
2020-12-30
GogglesGoggles are protective eyewear designed to shield the eyes from particles, water, chemicals, blood, bodily fluids, and other infectious materials. It is documented that wearing goggles is one of the important measures to directly prevent occupational exposure and infection from bloodborne pathogens. Some goggles may fog up during use, which can severely affect the wearer's vision, increase operational difficulty, and raise the risk of contamination. This not only impacts the accuracy of the wearer's operations but also increases psychological stress. Considering the fogging of goggles, I have summarizedGogglesthe causes of fogging and anti-fog techniques, hoping to help you.
Analysis of the Causes of Goggles Fogging
Using goggles for protection usually requires wearing an N95 or N99 mask with good airtightness. However, as the wearing time increases and with operations and communication, the airtightness of the mask decreases, causing some gases to escape from the sides of the nose bridge. The gases enter the goggles from the upper edge, leading to fogging, reduced visibility, and obstructed sight. Additionally, when there is a significant temperature difference between the goggles material and the environment, water vapor condenses on the surface. This occurs because the temperature drops and the saturation vapor pressure of water decreases below the partial pressure of water vapor in the air, causing the water vapor to condense into droplets, resulting in fogging of the goggles.
GogglesAnti-Fog Techniques
1. Leave adhesive film to seal the upper edge of the mask. Cut the film into strips and stick it horizontally on the upper edge of the mask and the skin of the lower eyelid to ensure that the upper edge of the mask fits the facial skin. This method can reduce the gas entering the goggles through the upper edge of the mask, but the film directly adheres to the eyelid skin, which may lead to skin damage related to medical adhesives. If you are allergic to the dressing, it can also exacerbate skin damage.
2. When wearing a mask with a paper patch on the upper edge, place a tissue inside the mask. After putting on the mask, use an infusion patch to stick it at the junction of the upper edge of the mask and the skin of the lower eyelid. The tissue in this method is used to absorb a large amount of moisture in the mask, and the low-allergen paper infusion patch has low viscosity, causing less damage to the skin and is less likely to cause allergies. The downside is that the infusion patch cannot guarantee the tightness of the upper edge of the mask, and some gases still enter the goggles from the upper edge of the mask.
3. Apply anti-fog treatment to the lenses of the goggles. Evenly apply the anti-fog agent to the inner surface of the lenses and wait for it to dry before wearing. In this method, the anti-fog agent is mainly designed for spraying. If you spray the anti-fog agent directly on the inner layer of the lenses and wear it after drying, although it has anti-fog effects, the water stains on the lens surface are mostly halo-shaped, reducing clarity and affecting vision and visibility.
4. Evenly apply iodine tincture to the inner layer of the goggles and wait for it to dry before wearing. The principle is that after the iodine tincture is applied to the surface, ionic iodine turns into molecular iodine and oxidizes to form a protective film. At the same time, studies have confirmed that iodine-containing aqueous solutions can be used as disinfectants for goggles without affecting their lifespan and use. This method has a good anti-fog effect on the lenses, and iodine tincture is a medical disinfectant that is relatively easy to obtain.
That is theGogglesanti-fog techniques. Have you learned them? Jinan Hai'an Te'an Security Equipment Co., Ltd. specializes in public occupational safety, personal firefighting equipment, security equipment research and development, manufacturing, maintenance testing, and firefighting engineering construction. The company mainly produces and operates various safety protective equipment and other supporting devices, such as safety helmets,Goggles, protective clothing, positive pressure air respirators, gas masks, firefighting helmets, etc. If you need them, feel free to contact us.
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The company's core manufacturing and production of head protection, body protection, respiratory protection, fire fighting and rescue and other series of professional products, to give customers special environment from head to toe safety protection.
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100 meters south of Chengnan Chenzhuang Junction, National Highway 220, Changqing District, Jinan City, Shandong Province
Service Phone:400-666-9811/+86-531-87216666
E-mail:3087088615@qq.com
Sales Department Telephone:+86-13964160188
Business hours: 8:00 a.m. -22:00 p.m. (normal answer on Saturday and Sunday)
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