Check the seat for any irregularities in its design. Look for areas that are susceptible to breaking and wearing out. The baby seat should be lightweight and easy to manage, yet tough enough to ensure the safety of your child. Remember that the most important aspect here is safety. So keep a parent's eye out for any design flaws that could contribute to such.
However, you will still have to worry about how hard it is to detach such a harness. Go for baby car seats that allow for maximum safety and easiest securing of children. Also try reading the manual for each baby car seat to find out the guidelines and functionality each one offers. This will give a better idea on comparing each baby car seat by make and function.
It's your choice of course, but even if you usually use cloth diapers, I recommend that you use disposable ones when you're flying with infants. At least you won't have to start doing the laundry as soon as you get to your destination. Don't forget wipes, creams and baby powder - in fact everything you have to hand when you're usually changing your baby. A good alternative can be the self-contained diaper kits, these include an airtight plastic bag, diaper, wipes and rash ointment, once the diaper is changed it all just goes in the trash. To save the struggle of removing your little ones cloths in that very tiny bathroom space it is a good idea to undress him / her down to the diaper in your seat and redress when you return. As for where to change, if the airplane has a changing table in the bathroom, you're all set, otherwise your best bet is to ask the attendant, sometimes they have changing tables but not in all bathrooms, it's also a good idea to carry a couple of disposable changing pads (in case of soiling) they are generally less bulky, or a small blanket could be used for this purpose only. If your child uses a pacifier, taking a spare with you into the bathroom, it is a very good idea as there is nothing worse than having your child drop his or hers onto that very germy floor. As for the soiled diaper, pack a few disposable plastic bags in your diaper bag. These can be used for any soiled clothes as well of course to put that soiled diaper before disposing of it in the bathroom trash. Your fellow passengers will thank you for it.
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