1, different protection levels: KF94 mask is a Korean standard, which can prevent fog drops and filter particles with a diameter greater than 0.4μm, with a filtration rate greater than 94%, but there is no relevant standard for bacterial filtration rate; Happ ordinary medical masks can prevent nasal and oral secretions from being polluted, and the filtration efficiency is usually not high, lacking the requirements for particulate matter and bacteria filtration efficiency.

2. The process is different: the raw materials of KF94 mask are mainly nonwovens used in spunbonded or meltblown medical textiles; Happ ordinary medical masks are generally made of non-woven fabrics. In addition to melt blowing and spunbonding processes, hot rolling and spunlace methods are also used for protection.

3. Different usage: KF94 mask has stronger protective ability than ordinary medical mask, and can be worn in middle and high-risk areas, which has certain protective effect; Due to the low protection level of happ common medical masks, they are generally used for nursing or low-risk protection.