How to choose an air purifier<br>Deep-clean your living space. If there's dust lurking in your living space, it will make your need for an air purifier seem more dire than it actually is. Vacuum regularly, including furniture, and check your heating vents for lint and dust.

Based on that paragraph can we conclude that this sentence is true?
it will make your need for a smell purifier seem more dire than it actually is. Vacuum regularly, including furniture, and check your heating vents for lint and dust

Available choices: a). Yes b). It's impossible to say c). No
c).