An IFAK is an individual first aid kit. That term has expanded into the world of everyday carry and typically refers to a small, easily concealed, and easily carried medical kit for everyday emergencies.
The key is to learn how to use all this stuff, good thing to get trained when most of us just think about putting shots on target. But I guess if our shots get on target first no need for an IFAK
Wife is a nurse, so we carry one in the vehicles and our travel trailer. Of course in hiking packs.
I don’t carry one on my person as an EDC though nor do I plan too. I try to keep my stuff light and mobile. I am not a trained medic but I am trained in CPR and had first aid training but it’s been awhile. So I keep a CPR mask.
I could see these items being helpful in certain situations on your person like a shooting. But generally most places have kits in the store so for handling slips trips and falls. So I don’t really feel a need to constantly pack one. If I was an EMT or nurse maybe. But again there is only so much I want to always have on me.
I have several comprehensive IFAKs that I keep in my cars and range bag. Had an EDC IFAK for a while but even a small one with a tourniquet, gauze/clotting gauze, compression bandage gets unwieldy and is pretty much impossible to conceal.
I added another package of hemostatic gauze and an Army field dressing.
It fits in my cargo pockets.
It cost 50 bucks and it suits my needs.
I've had quite a bit of first aid training from the Army, from my employers when I was a security guard. I even went to school for two years to be a Medical Assistant and I've never had to perform First Aid on anybody except for when I was actually working in the ER at Evans Hospital.
Based on that experience I just don't see the need to go out and spend two or $300 on chest seals and Israeli bandages and all that other stuff that I'm very likely to Never Ever Ever Need.
Because of my meds I tend to bleed and bruise from the slightest impact, so my son-in-law, who is a graduate Health major, put a first aid kit together for me. Not concealable, but I take it with me wherever I go.