The Amazon page for this model shows it as currently unavailable. Details come from the older review and the maker’s claims. Replacement picks were checked on Amazon on October 15, 2026. CADR and warranty figures come from the older review and were not retested. The 90 dB noise figure in the older review looks wrong and was removed from the quick facts.
The Vornado AC550 was a plain, strong purifier for a large room. Its Amazon page is currently unavailable. This page keeps the review for owners and points to what to buy now.
Table of Contents
Best Replacement Today
Price on Amazon: $179.99 | 4.6 stars from 32,416 ratings (checked October 15, 2026)
What the Vornado AC550 Was
The Vornado AC550 was a plain, boxy purifier that put function over looks. The older review gave its size as 13.2 by 11.5 by 27.4 inches and its weight as about 15 pounds. It had four filter stages, a True HEPA filter, a carbon layer, an auto mode and a filter-life light on an LED panel. It came with a 5-year warranty. The Amazon page shows it as currently unavailable as of October 15, 2026, with no price.
Looking ahead, the Vornado AC550 is one more purifier whose Amazon page now reads currently unavailable. A Vornado replacement filter, the MD1-0022, is still listed at $38.99. The catch is that the older review gave a noise level of 90 dB, a number that cannot be right for a home purifier and is the kind of slip that makes old reviews hard to trust.
What the Older Review Said
- CADR. 245 for pollen, 218 for dust and 205 for smoke.
- Coverage. 335 square feet at five air changes an hour.
- Filters. Four, to be changed regularly. A Vornado filter, the MD1-0022, is listed at $38.99.
- Auto mode. Senses the air and changes the fan on its own.
- Noise. The older review said 90 dB. That figure looks like a typo, so check the manual.
The risk to watch is the loudness claim. At 90 dB, a purifier would be as loud as a lawn mower, and the same page compared it to a 30 dB whisper. Vornado does not make a machine that loud for living rooms. Expect more old listings with wrong specs. Check any noise figure against the maker, and read user reviews for the real sound on high.
CADR and Real Room Size
The CADR figures are consistent. A 335 square foot room with an 8 foot ceiling holds 2,680 cubic feet. At the smoke CADR of 205 CFM, one air change takes about 13 minutes, or about four to five an hour. The claim fits. A bigger CADR makes this a stronger unit than the small round models on this list. See what CADR means and air purifiers for large rooms.
Filters
Check the filter cost before you commit to any purifier. At $38.99 a set, a yearly change costs about the same as a smaller unit. Use the air purifier filter replacement cost guide to compare.
What to Buy Instead
The older review preferred the Medify MA-40 for a 335 square foot room. For a bigger, better-reviewed option today, see our Coway Mighty review. For a smaller room, the Levoit Core 300 review covers the lower price range.
Prices and Alternatives on Amazon
Prices and ratings were checked on Amazon on October 15, 2026.
Price on Amazon: $179.99 | 4.6 stars from 32,416 ratings (checked October 15, 2026)
The Winix 5510 is listed for up to 1,881 square feet in one hour with true HEPA, a carbon filter and app support. It has a 4.6 rating from over 32,000 ratings.
Price on Amazon: $229.99 | 4.6 stars from 29,228 ratings (checked October 15, 2026)
The Coway Mighty AP-1512HH is listed for up to 1,748 square feet with an air quality monitor, auto and eco modes and a 3-year warranty. It has a 4.6 rating from over 29,000 ratings.
Price on Amazon: $89.99 | 4.7 stars from 109,039 ratings (checked October 15, 2026)
The Levoit Core 300-P is listed with a CADR of 143 for smoke, 153 for dust and 167 for pollen. It has a 4.7 rating from over 109,000 ratings.
Price on Amazon: $169.99 | 4.5 stars from 2,574 ratings (checked October 15, 2026)
The Blueair Blue Pure 311i Max is listed for up to 2,107 square feet with Wi-Fi, auto mode and 23 dB quiet filtration. It has a 4.5 rating from over 2,500 ratings.
Pros and Cons
Pros: strong CADR; True HEPA and carbon filters; auto mode; filter-life light; 5-year warranty.
Cons: currently unavailable on Amazon; plain look; noise figure in the older review is wrong; four filters to replace; weight of about 15 pounds.
FAQ
Is the Vornado AC550 still sold on Amazon?
The Amazon page shows it as currently unavailable as of October 15, 2026, with no price. A filter is still listed.
How big a room does it clean?
About 335 square feet at four to five air changes an hour, from its CADR of 205 for smoke.
Is it really 90 dB?
No. The older review gave 90 dB, which looks like a typo. Check the manual or recent user reviews.
Does it have an auto mode?
Yes, per the older review. It senses the air and adjusts the fan.
Final Word
The AC550 was a solid purifier for a large room, but it is out of stock. A Winix 5510 or a Coway Mighty gives you a tested CADR and a steady filter supply.
What happens next: the AC550 may return, but a unit with a clear CADR and a clean spec sheet is the safer buy for a 335 square foot room.
Related Guides
Keep going with Levoit Core 300 review, Coway Mighty review, what CADR means, air purifier filter replacement cost guide and air purifiers for large rooms.
