The reporter actually measured four cooling "artifacts"
"Go out for five minutes and sweat for two hours." On July 28, the Jiangsu Provincial Meteorological Observatory upgraded and issued a high-temperature orange warning signal: the highest temperature in Nanjing will rise above 37 °C.
On July 29, although it rained, the high temperature did not recede, and the highest temperature in southern Jiangsu could reach 36 ℃.
This is already the second wave of high fever warnings this year.
The reporter noticed that many "cooling artifacts" appeared in front of the public, with countless styles, and they can be found on major e-commerce platforms.
Do these "cooling artifacts" really work?
The reporter purchased several different types of "cooling artifacts": fan caps, freezing sprays, cooling collars, etc. for actual measurements.
Intern Fang Lihua
Yangzi Evening News/Ziniu News trainee reporter Wang Can
Fan cap:
Block sight, noisy sound, average cooling effect
Hand-held fans and neck-mounted fans are relatively common. When searching on e-commerce platforms, the reporter noticed that fan caps are also very popular with consumers.
The reporter purchased a rechargeable fan cap at random. The monthly sales volume of this product is more than 1,000 pieces. There is a fan on the cap plate. The fan has three-speed wind adjustment and can be charged by USB.
According to the seller's description, the large brim of this hat can block more than 95% of ultraviolet rays, and the turbo circulating fan can enjoy the natural wind.
Before the reporter used the product, the measured body temperature was 36.7°C.
After turning on the fan to the maximum gear, the body temperature dropped by 0.2°C compared with the beginning, but basically did not feel the coolness when using it, and it did not relieve the discomfort caused by the heat.
In addition, after wearing this hat, the line of sight will be blocked, and the experience of people wearing glasses will be more obvious.
Moreover, the wind of the small fan can only blow to the forehead, and the wind is too concentrated, which can easily make the head cold.
The sound of the fan is very loud, which will affect the user's attention and disturb others in a quiet environment.
Freezing Spray:
Cooling effect is good but risky
"Cooling spray" is a cooling artifact recommended by many netizens, and it is usually sprayed on clothes.
But many people will buy "sports freezing spray" to cool down and cool down.
The reporter bought a can of spray and tested it.
After spraying, the body temperature dropped directly from 36.4 ℃ to 36.1 ℃.
However, after several sprays on the same body part, a freezing feeling will be clearly felt.
The product manual also points out that you cannot spray continuously for more than three seconds in the same place, otherwise there will be a risk of frostbite.
In addition, the reporter learned that freezing spray is mainly an emergency measure when athletes are injured, and it is not recommended to use it often as a cooling product.
Cooling collar:
Irritated by the freezing sensation, the neck is frozen and red, and the feeling of use is not good
The cooling collar is also a popular cooling product. It is small in size and looks like a juice popsicle. It is said that you can feel cool when you put it on your neck.
The reporter randomly selected one, and the seller wrote in the product introduction, "It's cold after use, reused, portable and foldable, and lasting cool."
After receiving the ring, the reporter noticed that it needs to be put in the refrigerator first. After about 20 minutes of freezing, it will become hard and iced from running water.
Before using this cooling artifact, the reporter's body temperature was 36.2°C.
After wearing it for 5 minutes, the body temperature measured at the neck was 35.8 ℃.
The drop in body temperature is more obvious, but the reporter's experience is not very good.
First of all, as soon as the collar is placed on the neck, the pores of the body will immediately feel enlarged. After only 5 minutes, the neck will be a little frozen red.
In addition, this cooling collar quickly returns to the water-biased form, which is not practical if it is to be used outdoors for a long time.
Mobile Umbrella:
The sun protection effect cannot be evaluated, and the rain protection is slightly "chicken"
In addition to the human cooling "artifact", mobile phones also have exclusive sun protection "artifacts".
The reporter noticed that many takeaway riders and online car-hailing drivers will place a small umbrella near the driver's seat to protect their mobile phones from sun protection, cooling, overheating and rain protection.
The reporter purchased a small umbrella with monthly sales of more than 6,000 pieces. After receiving the goods, I planned to evaluate its sun protection and cooling effect, such as whether the use of a small umbrella will affect the temperature of the mobile phone under the scorching sun.
But the sky is not beautiful, and it suddenly rained heavily in Nanjing.
The reporter noticed that a small umbrella is a good choice when using a mobile phone outdoors in rainy days, but it is also slightly "chicken rib".
First of all, it is not suitable for groups with shooting needs. Because the position of the small umbrella cannot be moved, the camera of some mobile phones will be blocked.
Also, when using a small umbrella, it is inconvenient to hold the stand.
It is worth mentioning that if it is used while riding an electric vehicle, it will slightly block the line of sight, which is not conducive to safe driving; when the wind is strong or the riding speed is fast, the mobile phone may still be wet by the rain, and the small umbrella may also be wet. blown over.