Use this coupon code at checkout: 50BM4DP6
Right now you can get the Air Purifier with True HEPA Filter for $39.99 on Amazon. Use coupon code: 50BM4DP6 to get an additional $20.00 off to make it $19.99. Shipping is free with Amazon Prime for orders over $25.
Amazon.com price frequently change and can happen at any time. Please refer to post date to see when deal was posted.