The Levoit Core 300S-P shows as currently unavailable, and no Amazon listing for the AirDoctor 1000 could be found. Current prices were checked on Amazon on October 16, 2026. Figures for size, noise and power come from the older page and were not retested.
The AirDoctor 1000 and the Levoit Core 300 are two small towers for a bedroom or an office. Here is how they compare and which one to buy.
Table of Contents
AirDoctor 1000 vs Levoit Core 300 at a Glance
Both are small towers for a bedroom or an office. The AirDoctor 1000 is sold through the AirDoctor store, and no Amazon listing for it could be found. The Levoit Core 300-P is $89.99 on Amazon, rated 4.7 stars from over 109,000 ratings. The Core 300S-P, the Wi-Fi version, shows as currently unavailable.
Design and Size
The AirDoctor 1000 is a slim tower, about 9 inches wide and deep and 23 inches tall, and it weighs about 10 pounds, per the older page. The Levoit Core 300 is a cylinder, about 8.7 inches wide and 14.2 inches tall, and weighs about 7.5 pounds. The Levoit is the smaller and lighter of the two.
Functionality and Features
The AirDoctor 1000 pulls air in from four sides and has a dim mode, a timer, an ion setting and two filter-change lights, one for the UltraHEPA and one for the carbon filter. It has four fan speeds, runs at 34 to 54 dB and uses 7 to 40 watts. The older page put the smoke CADR at 152 CFM. The Levoit Core 300 has a CADR of 143 for smoke, per the listing. A 235 square foot room with an 8 foot ceiling holds 1,880 cubic feet, so 152 CFM changes the air in about 12 minutes. See what CADR means.
Running Cost
The older page worked out that the AirDoctor 1000 costs about $7.40 to $42 a year to run around the clock, depending on the speed. At 7 watts that is about 61 kilowatt-hours, and at 40 watts about 350, so the math holds at about 12 cents per kilowatt-hour. The Levoit Core 300 uses a 56 watt motor, per the listing, so expect a similar bill.
Looking ahead, small towers like the AirDoctor 1000 and the Levoit Core 300 are being squeezed by cheaper copies. The Levoit Core 300-P is $89.99 with over 109,000 ratings, and the smart Core 300S-P, which the older page also linked, shows as currently unavailable. The catch is that a premium tiny tower has little room to grow against a unit that sells for a fifth of the price.
4 Small-Room Air Purifiers to Compare
Prices and ratings were checked on Amazon on October 16, 2026.
Price on Amazon: $89.99 | 4.7 stars from 109,074 ratings (checked October 16, 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: $129.99 | 4.7 stars from 13,704 ratings (checked October 16, 2026)
The Levoit Core P350-P is a pet-care purifier with an extra-thick carbon filter and an AHAM-verified rating. It has a 4.7 rating from over 13,700 ratings.
Price on Amazon: $41.79 | 4.6 stars from 45,962 ratings (checked October 16, 2026)
The Levoit Core Mini-P is a small purifier for desks, dorm rooms and bedrooms. It has a 4.6 rating from over 45,000 ratings.
Price on Amazon: $78.92 | 4.6 stars from 4,124 ratings (checked October 16, 2026)
The SilverOnyx is a light five-filter purifier for small rooms, reviewed on this site. It has a 4.6 rating from over 4,100 ratings.
The risk to watch is the coverage claim. The older page said the AirDoctor 1000 fits 235 square feet at five air changes an hour and the Core 300 fits 219. Both are fair. But the same pages quote 589 and 547 square feet at two air changes an hour, which is too slow for allergies or smoke. Expect more listings that lead with the larger number. Use the five-times figure, and add filters to the yearly cost.
Filters
- AirDoctor 1000. A pre-filter, a carbon and VOC filter, an UltraHEPA filter rated by the maker at 99.99 percent at 0.003 microns, and an ion setting.
- Levoit Core 300. A pre-filter, a true HEPA filter and a carbon layer, rated at 99.97 percent at 0.3 microns.
Ion settings can make a little ozone, so keep them off. See the air purifier filter replacement cost guide to compare yearly filter costs.
Which Is Better?
The AirDoctor 1000 has the stronger filter claim and two filter lights. The Levoit Core 300 is lighter, costs far less and has a huge review base. For most bedrooms, the Core 300-P is the better buy. Read our Levoit Core 300 review and air purifiers for a bedroom.
FAQ
Is the Levoit Core 300S still sold on Amazon?
The Core 300S-P shows as currently unavailable as of October 16, 2026. The Core 300-P is $89.99.
How big a room does the AirDoctor 1000 clean?
About 235 square feet at five air changes an hour, and 589 square feet at two, per the older page.
How big a room does the Levoit Core 300 clean?
About 219 square feet at five air changes an hour, per the older page.
How loud is the AirDoctor 1000?
About 34 to 54 dB, per the older page.
Final Word
The AirDoctor 1000 is a polished little tower, but the Levoit Core 300-P cleans a similar room for a fraction of the price.
What happens next: expect AirDoctor to keep the 1000 as its entry unit, and Levoit to fold the 300 into a wider family. The 300-P stays the safer buy.
Related Guides
Keep going with Levoit Core 300 review, Levoit Core 300 review, in depth, what CADR means, air purifier filter replacement cost guide and air purifiers for a bedroom.
