Teesside University

Guidance on the Dangers Associated with Laptops, Tablets and Other Associated Devices

Introduction

This guidance is for staff and students who use laptops, tablets and associated devices. It details the dangers associated with their use.

Dangers of Laptops Overheating

Devices such as tablets and laptops can overheat and there are instances of fires starting as a result of this. Unlike desktop PC’s, the hardware components in these devices are all in close proximity to each other with little room for air movement. The current trend towards miniaturization, forcing faster processors into smaller cases is also increasing the potential for devices to overheat.

If your device overheats it can cause serious burns as well as damaging the internal hardware. In 2010 Sony recalled over 500,000 VAIO laptops due to possible burn hazards.

Signs of Overheating

Spotting the signs of your device overheating can reduce the associated risks and prevent these dangers from occurring. If your device feels hot or is exhibiting any of the symptoms below the likelihood is that it is overheating:

Fan constantly running and making loud whirring noises

Laptop struggling to perform simple tasks like opening a new browser window

Error messages popping up in random programs

Lines on your screen (a sign the video/graphics card is overheating)

System crashes, screen freezes or the dreaded blue screen of death

Device abruptly closes down on its own

If any of these problems occur you should take immediate action to cool down the device and prevent further damage.

Tips to protect you and your Device from Heat Damage

1. Don’t sit with the device on your knees or lap, as well as the potential for burns this may also cause other various Health Concerns (see below)

2. Don’t sit in bed with your device unless you have a proper surface or heat absorption mat

3. Do allow your device to breathe. Avoid letting the air intakes become obstructed

4. From time to time blow out the dust inside your laptop. Computer cleaning helps improve airflow and will extend the machines life

5. http://www.ukdatacentercleaning.co.uk/computer-cleaning/

6. Avoid leaving your device plugged in to charge for any longer than is necessary. Devices left to ‘overcharge’ may overheat and cause a fire.

Electrical Shock

A properly functioning device will not shock the user. However, if it is old, check for any damage such as cracks in the casing, especially near to the battery to prevent the risk of an electric shock. Staff are reminded that all portable devices should be tested in accordance with the University’s PAT policy.

Health Concerns

Using your device in an ergonomically sound manner is important. Despite the name ‘Laptops’ should be placed on a desk or table whenever possible. Using a laptop on your lap may seem convenient but it is important to be aware of the potential risks of long-term use. These include:

Burns

Laptops and associated devices can overheat enough to burn your skin. Take extra care with older laptops (pre 2000), these earlier models can get very hot if used for several hours at a time.

Carpal Tunnel Syndrome

Carpal Tunnel Syndrome can be acquired even through desktop usage. However, the angle at which a device rests on your lap further increases wrist strain and the associated risk of Carpal Tunnel Syndrome.

Musculoskeletal Disorders

Studies have found that a high proportion of Laptop users report aches, pains or eye discomfort. These aches and pains are sometimes called upper limb disorders (ULDs), which can include a range of medical conditions such as Repetitive Strain Injuries. Most of these conditions do not indicate any serious ill health, but it makes sense to avoid them as far as possible.

Male Fertility Issues

When using a laptop or associated device for lap based computing the heat generated by the laptop computer can slow sperm production according to scientific studies.

Further Information

For further information on this subject or to discuss any issue in the guidance please contact the Health and Safety Centre on extension 2213.