Precautions for Use: When properly applied, it reduces infiltration and emissions of splashing viruses, pollen, sand spots, and dust. However, we do not give you the risk of infection. This product cannot be used in places where harmful dust or gas may occur, or to prevent it. If you experience any skin abnormalities or symptoms such as itchy, rash, or rash, stop using this product immediately and consult a physician. If you feel uncomfortable due to a smell, please stop using it. Do not sleep with the mask on. This product is a discontinued mask, so please do not reuse it. Due to individual differences, there may be a gap around the nose and the glasses may become cloudy, so please be careful when driving. Due to hygiene and functionality, we recommend that you use it one per day. Please avoid use near fire. Do not use for anything other than its intended purpose. Storage Notes: Store away from high temperatures, high humidity, or direct sunlight. Keep out of reach of infants. The mask does not completely prevent infections (intrusion). Please be aware that sizes may be exchanged and returned prior to purchase. The color of the actual product may appear different from the images depending on your monitor or PC settings. Because it is sold in several stores, there may be cases where the product is out of stock due to delay in the inventory. In that case, please note that cancellation will be processed before purchasing. Thank you for your understanding.