formaldehyde is harmful to health.
The newly bought mahjong mat has a smell, which is because it is brushed with formaldehyde. At this time, you can put it in the bathtub and soak it for more than 12 hours to let the formaldehyde seep into the mat out, and then put it on the balcony to air dry for two days to ensure that there is no peculiar smell.
buying skills of mahjong mats:
when buying bamboo mats, it is best to choose a "green mat" with long, flat, fine fibers and soft and tough texture. The "green mat" is the most cool and flexible. It depends on whether there are red and black ones, and it is better not to have them.
In addition, the smaller the bamboo blocks of the "mahjong mat" and the higher the polishing degree, the more comfortable it is. A good bamboo mat has a smooth surface, uniform color and square edges. Do not buy bamboo mats with obvious insect-eaten scars. In choosing the size, we should also pay attention to the size of the bed at home, rather than being too short and narrow, and not too wide and too long to prevent it from breaking; At the same time, we should pay attention to whether there is a break in the connected rib line and whether the gap between bamboo blocks is compact.
straw mats are not as durable as bamboo mats and rattan mats, but they are cheaper and better. Straw mats are generally made of rush, cattail and Malan grass, which are soft, absorbent and moderately cool, and are more suitable for the elderly and babies. However, some straw mats can cause allergies, so the allergic constitution should be carefully selected; In addition, mats are prone to mites, so they must be thoroughly cleaned and disinfected before and after use.