Ha! We take great pain to invest in equipment. But no matter how expensive or branded they are, these equipment are suspectible to dust. Well here's the irony - we can buy expensive equipment but find it difficult to spend for an appropriate water/dust proof cover!
Dusts clog air vents. They also settle on transistors and motherboards in equipment like a blanket on a cold night. High operating temperature cuts the lifespan of the components.
2. Restrict electrical conductivity
Equipment with intermittent sound, static, and noise could be a symptom of dust getting into the knobs or switches.
1. PVC covers - dust and water resistant, nice and sleek.

3. General service of equipment - unlike vehicle maintenance which cost a few hundreds, equipment services won't even cause a tooth ache