There is also a triathlon rider in our team (high five~), and his answer is: "This product is only suitable for use in the aerobic zone. When attacking uphill or racing for seconds, oxygen intake is everything! Anyone who can Get out of here if you sacrifice your air intake! But when going downhill or on flat ground, especially in urban areas, industrial areas, or right behind a truck, please pull on your magic hood to protect your precious lungs.”

The detection conditions for N95 are: non-oily particles (sub-micron sodium chloride) with a particle size of 0.075 micron CMD (equal to 0.26 micron MMD), and a flow rate of 85 L/min. Regardless of the mask brand, as long as the test result reaches more than 95%, it is what everyone often calls N95 mask. The test result of this magic headscarf is 86.6%, which is about 90% of the success rate of N95. But the measurement results after washing will be very different! Disposable N95 masks are not resistant to washing, and may even damage holes after washing; however, this magic bandana can be washed repeatedly, and it still has a certain filtering effect after being washed 200 times. For detailed test data, please refer to the test report page .

General medical-grade masks mainly use "germs" as the test target for filtration efficiency, but anti-haze masks use "sub-micron sodium chloride" as the test target for particle pollutants in the air. The two standards are different. However, purely in terms of their ability to combat PM2.5, the two levels are similar. However, medical-grade masks are electrostatically disposable, have a weak structure, and poor air tightness. They cannot withstand water washing or strong air flux, and their filtration efficiency is also poor. Not lasting. Therefore, it is only recommended for use indoors for epidemic prevention. Generally speaking, our products have better filtration capabilities!

At present, only the inner layer of filter material with nano protective layer is developed in cooperation with foreign manufacturers and imported from abroad. The rest of the materials and processing are completed locally in Taiwan.

Currently it is a single size, about 24cm wide and 50cm long when spread out. Because the hijab itself is very elastic, it can fit most adult face shapes. But for women or children with smaller faces, it may be too loose and easy to slip off. Therefore, starting from November 2018, all magic headscarves officially sold by Net Convection have added [hidden comfortable ear straps], which can help the headscarf be fixed on the cheeks and effectively solve the problem of slipping.

The recommended number of cleanings is 200 times. The average person washes it about three days or once a week, so it can be used for about two years without any problem. The recommended cleaning method is "gentle hand washing". After all, the cleaning intensity of the washing machine in everyone's home is different. In addition, you can add general neutral detergent (cold detergent, hand soap, shower gel, etc.) to assist cleaning, or you can wring it out and dry it, but do not dry or iron it!
If you still want to wash it in a washing machine, be sure to put it in a laundry bag for protection, and set the cleaning and dehydration modes to soft wash, which will be safer.

That is not what is commonly called "hair ball", but a lint phenomenon unique to "short fiber polyester fiber", so it is normal!
When we were selecting fabrics, we found that although the "long-fiber polyester fiber" commonly used in sweat-wicking clothes on the market has good ductility and more saturated printing colors, it feels cold and plasticky (cold in winter and cool in summer), and is vertical and horizontal. It is elastic in both directions and is difficult to operate when deformed and worn.
The "short-fiber polyester fiber" most commonly used by major international magic headscarf manufacturers (BUFF, HAD), although the production is more complicated. The polyester fiber must be cut into thin threads before spinning, but its special "cotton-like" "feel", has very good skin-friendly properties, just like pure cotton fabric, and has both cooling and warmth effects (warm in winter and cool in summer), and its moisture absorption and perspiration speed and air permeability are better than long fiber fabrics. good! More importantly, after it is woven into fabric, it only has high elasticity in the radial direction and no elasticity in the longitudinal direction, so it is very suitable for the ever-changing characteristics of the magic headscarf.
However, "short-fiber polyester fiber" has a disadvantage, that is, after washing, fine lint will appear from the inside to the surface. Because these internal lint are not printed, they are still close to the white color of the gray cloth. If it is dark-colored, It will be more obvious on the headscarf. This situation also occurs on magic headscarves of similar fabrics from other brands, and there is currently no solution.
Although lint is different from wool balls, it will not get worse with washing, nor will it feel rough to the touch. However, if you still cannot accept it, you can choose a lighter or more floral style, which will be almost invisible. Or choose the [ extreme black ] anti-haze magic headscarf that is dip-dyed and colored, and you won’t have this problem at all~

If the edges are closed with stitches, it will affect the elasticity of the magic headscarf when it is deformed, and it is also easy to break the thread due to pulling. It is also easy to leave marks on the skin when worn on the body. Therefore, the general magic headscarf is not hemmed! This applies to all brands, big and small. The fabric used in the magic headscarf is woven in such a way that it will not unravel indefinitely. If you see threads on the edges, just cut them off, and the threads will no longer come off.

The quantitative definition of the aerobic zone is between 60% and 80% of the maximum heart rate; the qualitative definition is the degree to which you can talk but cannot sing a song during exercise. This heart rate zone is also the stage where fat is actually burned. If the heart rate is too low (less than 60%), there will be no fat-burning effect. If the heart rate is too high (more than 80%), the proportion of fat burned will decrease, and glycogen and muscle sugar will be burned instead.