thinQmaster Virtual testing partner Adaptive practice exams that find your weak spots and drill them. Every answer explained. From $69
Enroll

thinQmaster

Find your exam

Five questions free, before you decide.

Step 1 · choose a vendor

In one of our camps? Your practice exams come with the tuition — they are on your study page already.

IT Support & Hardware · Foundational

Compressed Air

Canned or electric blower air used to remove dust from computers and peripherals.

Definition

Use short bursts, hold cans upright to avoid liquid propellant, and hold fans still to prevent overspinning. Work in a ventilated area and consider a mask. Electric blowers and ESD-safe vacuums are alternatives.

Example

Blow dust out of a laptop's heat sink fins through the exhaust vent while holding the fan.

Exam tip

Hold fan blades still when using compressed air to avoid damage.

Related terms