Button batteries (those small, round, coin-shaped batteries) can cause fatal injuries if swallowed. They burn through tissue in as little as two hours. Secure battery compartments on all devices, and if you think a child swallowed one, go to the ER immediately.
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Choosing age-appropriate toys and checking them regularly for broken parts, loose batteries, and small pieces. Look for ASTM F963 certification on toys sold in the US. Magnets and button batteries are especially dangerous if swallowed.
Any small object, food, or toy part that can block a child's airway. Kids under 3 are at the highest risk because they explore everything by putting it in their mouths. A quick rule of thumb: if it fits through a toilet paper roll, it's a choking hazard.
Keeping toxic substances locked away and out of sight. Cleaning products, medications, laundry pods, and even some houseplants can poison a child. Store chemicals up high or behind locked cabinets, and save the Poison Control number: 1-800-222-1222.