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10PCS Non Toxic Anti dust Nasal Filter Ventilation Vertical Folding Dust Mask Disposable Respirator Filter Medical Mask Regular price $13.08 $11.45 Sale Color White Blue

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Fanspack Dust Proof Cotton Face Mask has replaceable PM2.5 filter inside to protect against PM2.5 level of dust, pollen, droplets etc. It's designed with streamlined edge to fully cover chin and throat area. Adjustable nose bridge helps to seal the space around nose area. This cotton mask is washable and good for outdoor activities. Price$18

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SPECIFICATION PRODUCT NAMEFFP2/ KN95 Face Mask Ear Belt SCOPE OF APPLICATIONIt is applicable to the environment where are lots of powder dust and mist produced by mechanical force in handling coal, iron ore and quartz mineral or processing cotton, wheat flour and other materials, with the occupational exposure limits of 10 times and the concentration of dust and mist below the limit

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2020 3 12 · Our most popular N95 mask is the 3M 8210 Dust Mask.P95 MasksMost commonly used for working in environments exposed to oil based particles, P95 respirators are approved by NIOSH for 95% filtration efficiency against oil based and non pil based particulates. I deally suited in the petrochemical and pharmaceutical sectors.

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2020 2 13 · 5pcs KN95 Multicolor vertical folding nonwoven valved dust Activated carbon mask PM2.5 respirator mouth mask with valve . 89% of 368 recommend. STAFF PICK 3M 5N11 N95 cotton 10PCS Manufacturers dust mask filter . 89% of 368 recommend. STAFF PICK 20 pcs/box 3M Respirator Dust proof Working Safety Masks . 89% of 368 recommend. STAFF PICK


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Physics XDOC.ES

The screen is scanned 25 times a second to give an exact replica of the original picture. In the colour television camera three separate images are projected through red, blue and green filters onto three photosensitive layers, each of which gives a signal corresponding to the red, blue, or green component of the original picture.

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