The following are the environmental protection grade standards for main floors:
Grade 1. E0: refers to the floor with excellent environmental protection performance. The formaldehyde emission is lower than the European standard of 0.5mg/L, which has little impact on human body and environment.
2.E 1 grade: refers to the floor with formaldehyde emission less than 1.5mg/L, and most floor brands are E 1 grade.
3.E2 level: refers to the floor with formaldehyde emission less than 5mg/L and less harmful substances.
4.F4 Star and F3 Star: They are the environmental protection standards stipulated in GB/T20238-20 14 of China, and they are F4 Star and F3 Star respectively. The evaluation indexes mainly include formaldehyde emission and the content of heavy metals such as lead and mercury. And has excellent environmental protection performance.
Summary:
Consumers should choose E0 floor or E 1 floor to achieve better environmental performance requirements. In addition, it should be noted that the environmental protection level of the floor is not only the problem of formaldehyde content, but also the influence of other harmful substances on human health, so you should carefully check the materials used in the floor, production technology and other information when purchasing.