Under normal temperature, wearing linen clothes can reduce the real temperature of the human body by 4-5 degrees, so linen is also known as "natural air conditioner". Because flax is a rare natural fiber, accounting for only 1.5% of the natural fiber, the price of flax products is relatively expensive, and it has become a symbol of status and status abroad.

Linen fabric can reduce the sweating of the human body compared with other fabrics. Linen textiles can absorb water several times faster than silk, rayon, or even cotton. Linen is the best flame retardant fiber among all textile fibers. The hoses used by the fire brigade and the fireproof clothes worn by the firefighters are all made of flax fiber. In foreign countries, rooms in high-end hotels must be decorated with linen.