18 degrees C cool Korean BLUEFEEL cooling collar Basic+ (classic+) mesh

B68-B-001 Korean BLUEFEEL cooling neck collar Basic+ (classic+) (001S smile, 001G grid) Phase change materials (PCM): It is one of the important technologies used by NASA in space suits to help astronauts maintain the "just right" temperature. BLUEFEEL uses the same raw materials in its cooling collar to help the wearer stay cool and comfortable in hot environments. Features: The outer layer adopts edge processing that is non-irritating to the skin, bringing a comfortable wearing feeling. It is filled with up to 99.5% PCM, does not add water and does not evaporate, and has long-term heat storage and is more durable. Place it in the freezer for 20 minutes, refrigerate for 1 hour, and use ice water for 10 minutes. It can be quickly cooled and used in an environment below 18 degrees Celsius. If you want to maintain it for a longer time, please freeze it in the freezer for about 6 hours before use. Material: surface TPU, filler: phase change material PCM Product size: length 157x width 169x height 26mm Wearing size: Free Size (it may be too big for children in elementary school, it is recommended to choose a lightweight model) Weight: 160 grams Cold keeping time: about 90-120 minutes (The cooling time is for reference only. The effects of use may vary depending on the wearing environment and personal experience.) Origin: China (produced by Korean brand) Warnings/Notes: 1. This product is not edible and is not for keeping fresh and cold. It needs to be used under adult supervision. 2. This product cannot be twisted or machine washed. If there are stains on the surface, clean it with neutral detergent and then wipe it dry with a wet towel. 3. Do not use if the surface is damaged. If the filler leaks and comes into contact with the skin, please wash it immediately with soap or shower gel. If skin itching, redness, swelling, rash and other discomfort occur, please seek medical treatment immediately. 4. Do not place it near high temperatures or fire sources. If not used for a long time, store it in a well-ventilated and dry place. FAQ Q: What is the cooldown time and duration? The average cooling time is 20 minutes in the freezer, 1 hour in the refrigerator, and 10 minutes in ice water. It can be quickly cooled in an environment below 18 degrees Celsius. In different cooling environments, the duration and cooling time may be different. The usual duration is about 40 minutes to 2 hours. Depending on the individual's body temperature and the temperature of the environment used, the maintenance time and sensitivity may vary. Wrap the cooling collar with a wet handkerchief or towel before using it to maintain a longer duration. If you want to extend the maintenance time as much as possible, put it in the freezer for about 6 hours. When using it, you can maximize the low-temperature cooling feeling for nearly 4-6 hours. Q: What is the reason for the difference in duration for each person? The duration may vary depending on the individual's usual body temperature and the ambient temperature. For example: people who have a fever or are usually afraid of heat may have a shorter duration than average. Q: Can it be stored in the freezer when not used for a long time? It can be stored in the freezer during regular use. However, if the product is not used for a long time like winter, please avoid direct sunlight and store it in a cool and dry place. It can be used semi-permanently. Q: There are air bubbles inside the cooling collar tube. Is that okay? The dissolved gas in the refrigerant PCM in the tube partially dissolves after freezing and thawing, and gas droplets may occur. This is a natural phenomenon caused by changes in gas solubility, please use it with confidence. Q: There are water droplets on the surface of the cooling collar. Is this normal? It's normal. During drastic temperature changes, water vapor in the atmosphere may condense on surfaces to form water droplets. This is a temporary phenomenon caused by temperature difference, just wipe it before use. Q: It would be nice if it could be completely cooled, but why doesn’t it seem as cool as expected? The cooling collar is designed to freeze at 18 degrees Celsius. It is designed to be worn comfortably for a long time, so it maintains its function at about 18 degrees Celsius. If a lower temperature is used, various diseases and discomforts may occur due to excessive drop in body temperature, so 18 degrees is a more appropriate temperature.