Also available, Costco.com has Winix 5500 PlasmaWave Air Purifier (includes 8 carbon filters) on sale for $139.99. For non-members there will be a $7 surcharge. Shipping is free. Thanks Gosh
Editor's Notes & Price Research
Price is valid 3/28 - 4/17.
They are made in Korea.
Amazon.com pricematched http://slickdeals.net/f/8617770-winix-wac5500-true-hepa-air-cleaner-139-99-on-amazon?v=1&src=
Costco = Costco warranty and 5% cashback with Chase Freedom (wholesale clubs) starting April 1st. 8 Carbon filters.
Amazon = 5% cashback with Prime and Amazon Store card and faster shipping. Most probably only 4 carbon filters.
Choose your poison
I got three of them at Costco last April for $129.99 but then they came with only 4 carbon filters. This time there are 8 carbon filters included.
The HEPA filter is washable (up to 6 times). I washed mine 3 times so far. They hold well after washing. I also installed prefiter for airconditioners to additionally protect carbon and HEPA filters - http://www.amazon.com/Duck-128523...detail
There's also a very helpful review and advice on the product page on Amazon (by Kent) - http://www.amazon.com/Winix-WAC55...winix+5
Further on you can make your own carbon filters - http://www.amazon.com/Carbon-Pre-...detailpage Not as thick as the original ones but work well.
Also, now i'm thinking about using these fiters as prefilter - http://www.amazon.com/dp/B003DWE3...0UWD
Whatever prefilter you decide to use make sure you place it first. Then goes carbon, and HEPA - last. (direction - from air intake to the fan)
All 3 work perfectly well (they have been on 24/7 since the day of purchase), the allergies of my daughter are totally gone. The furniture stays dust free for a week. Highly effective and recommended.
Thinking about getting one or two more.
If you're not a student, there's also a free 1-Month Amazon Prime trial available.
Q: Are these available in-store?
A: Nobody has reported them available in-store, so going to go with 'no'.
Q: What's the difference between this deal for $10 more than the last deal?
A: This deal (from Costco) comes with 8 carbon filters instead of 4.
Q: Does the Amazon unit come with 8 carbon filters?
A: Doubtful.... probably only the Costco version.
Q: Can these smell a fart?
Q: What about replacement filters?
A: Comes with a washable HEPA filter, after that then this fits (but you'll also need carbon filters): http://www.amazon.com/Fellowes-HF...B0067D7D1S