Respirator Silica Gel Breathing Activated Carbon Replaceable Filter Core Cotton Piece Head Wear Washing Industrial Mask Use crowd: office workers, outdoor work, athletes, the elderly. Function: smog, , formaldehyde, , droplets, pollen, odor, exhaust gas, second-hand smoke, etc. Use scenarios: office premises, various construction sites, various factories, cycling, running, etc. Product advantages: good air permeability, no suffocation, good sealing, core can be purchased separately. The housing can be washed. Filter characteristics: large filter area, 99% effective filtration, 5-layer filtration, double-layer melt-blown material, folding three-dimensional filter core, easy to install, not easy to wrinkle. Breathing : Large breathing , smooth out of breath, not hold your breath. Features of soft rubber ring: food-grade TPU material, catering to human face, good comfort, removable and cleanable. Shell and bracket: food-grade PP material, good toughness, stylish and beautiful design, wrap the face. Wearing: head-mounted, with no ears, elastic rope, can be adjusted at will. Product size: 122.15*101.83*44.29MM, product weight: 48g Product configuration: mask shell *1, core *1, breathing *2, elastic rope *1, buckle *1, certificate *1. Product name: mask Product model: K5 Daily cleaning and maintenance: It is recommended to rinse with clean water before use. Apply toothpaste or detergent to the mask, scrub with a brush, and rinse with clean tap water Disinfection method: 1. UV sterilization. Spray with 2.75% , or use cotton. Precautions: 1. Replace the core on time, depending on the environmental pollution, ordinary pollution 5-7 days, moderate pollution 3-4 days, severe pollution 1 day. 2. This product is suitable for air protection in daily environments. It can filter fine particles, smog, , droplets, exhaust gas, formaldehyde, , etc. in the air. 3. This product can effectively resist the spread of , such as droplets, particles, etc., but it cannot completely the risk of patients. Wrong use of masks may cause physical discomfort. 4. This product is not suitable for underwater operations such as anoxic environments. Contains: 1 mask