Getting a handle on these 7 bad habits is a surefire way to keep your PC running for years to come. The case fans are ...

For instance, a compressor model takes in moisture-laden air ... Air purifiers draw in air through a fan and then move it through multiple layers of filter (usually three) to give you purified air.

This air purifier promises to outperform competitors with standard HEPA filters, but does it stack up? Read our full review.