Dyson via Rakuten offers its refurbished Dyson AM11 Pure Cool Tower Purifier Fan in Iron/Blue for $199.99. Apply coupon code "HOME20" to knock that to $159.99. With free shipping, that's $139 under the lowest price we could find for a new one, although we saw it refurbished for $10 less last October. Features include: vacuum-sealed glass HEPA filter that removes 99.97% of allergens and pollutants dimmable LED display 10 air flow settings 9-hour sleep timer magnetized remote control Note: A 6-month Dyson warranty applies.
You don't need to hire a contractor or do extensive renovations to add value to your home.