First aid kits can be purchased from various national retailers, specialized medical suppliers, and online platforms. Depending on your needs—whether for home, travel, or a professional workplace—you can find ready-made kits or the supplies to build your own. Where to Buy Ready-Made Kits First Aid Kits - Emergency Preparedness - The Home Depot First Aid Kits - Emergency Preparedness - The Home Depot. The Home Depot First Aid Kits in First Aid - Walmart.com First Aid Kits in First Aid - Walmart.com. First Aid Kits - CVS Pharmacy