:dc gram microparticles-narrow chemical aerosol mask (blue mask + yellow ear straps 12 pieces/box)

99% of air pollution consists of "nanoscale" particles Staying in a working environment full of chemical aerosols makes even breathing feel like chronic suicide. Put on the "Narrow Type Mask" immediately to resist existential threats: https://youtu.be/gAk4c_3nZSY https://youtu.be/NLtHbVuTcJw * Gram particle narrow version PM2.5 anti-air pollution washable nano film mask * Narrow plane design, high tightness between cheeks, new three-dimensional space design * Breathing in three-dimensional space is smooth, no need to use mask support frame * Special cotton rope ear straps allow you to wear them for a long time at work, still comfortable and without any marks. * 95% oil fume proof, 99% dust proof, 100% suitable for you who work with oily chemicals * High-efficiency filtration + breathable and comfortable + oil-proof and moisture-proof * Replaces general N95 masks, more breathable and comfortable *Lightweight and three-dimensional design, getting rid of heavy burden, allowing you to breathe freely even if you wear it all day long. * Eco-friendly and can be washed and reused. It is recommended to wash it every day and replace the mask with a new one every 3-4 days. One mask is worth 4 N95 masks. * Each box of masks has an independent ID card for quality control https://www.dctpro.com/img/fitted_flat_facemask-img-12.png Suitable for: 95% protection against kitchen fume particles: Suitable for kitchen workers, frying, grilling, and quick frying. 99% protection against grinding dust: Suitable for precision processing, carbon fiber and glass fiber processing, manicure, food seasoning processing, building decoration, construction engineering, grinding processing industry, wood processing plant 95% protection against chemical aerosols: suitable for gas stations, precision processing, beauty salons, motorcycle owners, paint decoration, and shoe industry Product specifications: 12 pieces per box color: Blue mask + yellow ear straps Blue mask + gray ear straps The appreciation period is not a trial period, and the returned product must be unopened, in brand new condition, and fully packaged (maintain the integrity of the product, accessories, packaging, manufacturer's carton, and all accompanying documents or information). Mask products are personal hygiene products and have reasonable exceptions stipulated in Article 19 of the Consumer Protection Law. There is no 7-day hesitation period after opening, and returns and exchanges will not be accepted.