Select from options: Continue writing the next sentence.

How to choose an air purifier
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.

Available options:
[1]. Wash your windows and doors well whenever you can. When looking for a new air purifier, consider : Personal preference.;
[2]. Dust that doesn't reflect light well can negatively affect your air purification or improve the quality of your air. Use a vacuums vacuum or a vacuum hose with long-nozzle appliance attachments to suck up dust.;
[3]. If you still feel like you'd breathe easier with cleaner air, then you can start doing research on an air purifier. Determine why you need an air purifier.;
[4]. If dust is common, tap the sofa to blow it out. Cleaning bedrooms and taking it to the dry cleaners regularly will give you results that expand the storage capacity of your house without increasing dust counts.;
Answer:
[3].