I have been thinking about getting one of these just to drown out some of the noise from my neighbors!
I think $5 for a good night’s sleep might be totally worth it!
Remember Walmart prices vary by area so the price should be AROUND $5 if your store carries the right type.
Holmes Air Purifier: $14.94
$10.00 off any Holmes or Bioniare aer1 Ready 
Thanks I Heart The Mart !