These methods of identifying masks are unreliable
1. Can a waterproof test distinguish a mask from a fake one?
The surface of many fake masks in the market is also made of polypropylene spunbonded nonwoven material, which can be waterproof. However, for the middle layer of masks, the fabric with electrostatic meltblown is pretended to be spunbonded cloth.
Therefore, through the waterproof to identify unreliable.
2. Is a mask that doesn't burn in the middle layer real?
Whether a mask can be ignited or not is not the criterion for judging its authenticity.
The main material of the mask is polypropylene, a thermoplastic resin. The material itself is flammable.