Is the wood board of grade E1 or E0 better?

Whether to choose E0 or E1 grade boards mainly depends on personal needs and budget. E0 grade boards are superior in environmental performance, with lower formaldehyde emissions, and are more friendly to human health. They are especially suitable for occasions with high requirements for indoor air quality, such as children's rooms or hospitals. However, the production cost of E0 grade boards is higher, so the market price is usually higher than that of E1 grade boards. Although E1 grade boards have relatively high formaldehyde emissions, they still meet national environmental protection standards and are more affordable. They are suitable for consumers who do not have particularly high environmental requirements or have limited budgets. 

In summary, if the budget is sufficient and there are high requirements for indoor environmental quality, E0 grade boards are a better choice. If the budget is limited or the environmental requirements are not particularly high, E1 grade boards are also an economical choice. When making a choice, other properties of the board, such as strength, water resistance, fire resistance, etc., as well as personal budget and usage needs should also be considered.