Choking hazards
-Devices might contain small objects. Especially if there are children ages 1-3 inside your home, items such as kepcaps on keyboards, Mouse batteries and other small parts inside your computer have choking risks.
-Keep said parts out of reach for children and do not consume them yourself. 

Maintenance
A. Cleaning
Cleaning your device reduces the spread of germs and contributes greatly to your hygiene, especially if you tend to use devices often.
The risk of fire, shock or damage to your device during cleaning can be reduced by taking the following precautions:

-Unplug all cables and turn your device off before cleaning.Only clean the exterior of your device.Clean your device with a dry cloth.
-For devices with fans, vents, ports or similar openings:Gently clean the exterior surface of the fan, vent or other opening to remove any dust
buildup.
-Do not insert objects into the fan, vents, ports, or other opening.
-Do not attempt to clean connectors through immersion in liquids. Only gently wipe and dry
with a clean cloth.

b. Usage
To reduce the risk of fire, shock or damage to your device, do not expose your device to rain, snow or other types of moisture. Do not use your device near water or in a damp or excessively humid location (e.g., near a shower, bathtub, sink, or swimming pool, or in a damp basement). To keep your device in prime operating condition:

-Do not use your device near heat sources, food, excessive dirt, dust, oil, chemicals, or in strong direct sunlight.
-Do not place objects on top of your device.
-For devices with fans, vents, ports or similar openings:
Do not insert objects into the fan, vents, ports, kickstand slots and hinges, spaces around keys, or other openings.
-Do not allow dust to build up on the fan, vents or other openings.
-Do not place your device in narrow or cramped space.
-Do not dry your device with a hair dryer, clothes dryer, conventional, toaster, or microwave oven. If your device becomes wet, gently wipe the exterior with a clean, dry cloth.

Touch screen glass
-The touch screen on your device, like most touch screens, is made of glass. The glass can break if your device is dropped or receives a significant impact. To reduce the risk of personal injury, avoid touching the screen if the glass is broken, chipped or cracked and arrange to have the screen replaced.

-A cracked or chipped touch screen caused by misuse or abuse of your device is not covered under the Standard Limited Warranty.

Battery safety (non-user-replaceable batteries)

-items such as.. Surface, Xbox, HoloLens, Surface Headphones, Surface Earbuds, Microsoft Band, devices with non-user-replaceable batteries
-Improper use of your device’s battery may result in fire or explosion. Do not heat, open, puncture, mutilate, or dispose of your device or its battery in fire. Do not leave or charge your device in direct sunlight for an extended period of time. Doing so may cause damage or melt the battery.

For more instructions, please visit: support.microsoft.com/en-us/topic/product-safety-warnings-and-instructions-726eab87-f471-4ad8-48e5-9c25f68927ba