据官网说的~regulated under the most universally accepted global car booster seat
WHAT ARE THE LEGAL STANDARDS FOR CHILD RESTRAINT SYSTEMS?
The mifold Grab-and-Go booster seat is regulated under the most universally accepted global car booster seat regulations, specifically:
European Union ECE R44/04; FMVSS 213 in the United States, and the RSSR regulations in Canada. Carfoldio Ltd., (the Company that manufactures mifold) has conducted comprehensive test programs in test facilities certified for each of these standards to confirm compliance with each of these regulations. You can find the relevant information about each of these on this page.
Carfoldio is dedicated to providing high quality products utilizing premium raw materials and detailed quality assurance procedures. We perform rigid quality control testing both internally and we test the final product at testing facilities certified for each of the regulations to verify initial and on-going compliance. Carfoldio is committed to providing our customers with a mifold Grab-and-Go booster seat that is high quality, functional, and portable that meets the needs of active families.
Based on our comprehensive testing of the product, Carfoldio has verified and can certify that testing of mifold has been completed successfully with all tests yielding results that either meet or exceed the requirements of the applicable regulation FMVSS 213.
As part of our Quality Assurance program, we are committed to a schedule of on-going product testing to ensure that all mifold Booster Seats are manufactured to our specifications and meet all of the regulatory requirements of FMVSS 213.
via https://goo.gl/dHgZma
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看了你这个，就去搜了搜，发现iihs拒绝测试mifold
为mifold背书。所以mifold基本是自说自话。
iihs拒绝测试的声明：https://www.iihs.org/iihs/sr/statusreport/article/51/9/2
mifold的回复：https://www.mifold.com/iihs/
mifold其实应该自己搞个碰撞测试，特别是对比测试。不过没有找到相关的东西。对于没有经过测试的安全设备，仅凭直觉去判断是有点心太大了。
我碰上一次司机要我们用4-6岁那个款的
但说要收2块钱。可是我自己鼓捣半天不会用，让司机叔叔来帮忙结果他也不会，最后作罢
欧阳淑蓉
不知道是不是通过了安全测试
另外不要说折叠的，曾经买过那种可以用很多年的，很不舒服，小孩不愿意坐。后来还是换成那种又大又笨，而且只能坐几年的。一般1岁前提篮，2-4岁小的安全座椅，4-8岁用大的安全座椅，然后是坐垫。