Best budget in air purifiers for smoke
The budget smoke pick for a small bedroom: a smoke CADR of 143, no ionizer, and a Smoke Remover filter option. US only.
Our score: 7.7/10 out of 10Researched, not lab-tested
- Smoke CADR
- 143 CFM
- Room size (maker)
- 222 sq ft
- Filter life
- 6 months
- Ionizer
- None
Is it right for you?
Pros
- Smoke CADR 143, about 222 sq ft at 5 air changes an hour
- No ionizer; Levoit states it is ozone free
- Smoke Remover filter sold for smoky seasons
- Small and light at 7.9 lb
- CARB compliant and ETL listed per Levoit; 2-year warranty
Cons
- Filter every 6 to 8 months, sooner in heavy smoke
- No air-quality sensor or auto mode
- Sized for small rooms only
- US only: Levoit's store doesn't ship to Canada
- Best for
- A US bedroom or small office up to about 210 sq ft when wildfire smoke drifts in, on a tight budget.
- Not for
- Living rooms or open-plan spaces, Canadian buyers, or anyone who wants a sensor-driven auto mode.
Our verdict
For a small bedroom when smoke drifts in, the Core 300-P is the low-cost option. Levoit’s manual gives smoke, dust and pollen CADRs of 143, 153 and 167, or about 222 sq ft at five air changes an hour. It has no ionizer, and Levoit says it is ozone free, CARB compliant and ETL listed. It is small, at 8.7 in square and 7.9 lb.
The controls are simple, with no air-quality sensor or auto mode, so you turn it up yourself when the smoke comes. Levoit sells a Smoke Remover filter for it alongside the standard, pet and toxin filters. Levoit’s store doesn’t ship outside the US, so it is a US pick. For a bigger room with an auto mode, step up to the Coway Airmega Mighty; all our picks are in the air purifiers for smoke comparison.
Using it during smoke events
Health Canada’s rule of thumb is a smoke CADR of at least two-thirds of the room’s floor area in square feet, assuming 8 ft ceilings. A smoke CADR of 143 covers about 215 sq ft by that rule.
During smoke: keep windows and doors shut, set up a cleaner-air room with the purifier where you spend most time, and avoid air cleaners that make ozone. A purifier cleans indoor air only: outdoors, a well-fitting NIOSH N95 cuts fine particles, though not the gases in smoke (see our N95 masks). Sources: Health Canada on choosing a purifier and the EPA smoke fact sheet.
Vacuum the pre-filter every 2 to 4 weeks and plan on a new filter every 6 to 8 months, sooner when it runs hard in smoke; never wash the main filter. Leave 15 in clear on all sides. Levoit warns against running it where humidity is above 85 % or near humidifiers, diffusers or essential oils.
Specs
Levoit Core 300-P Air Purifier
Cleaning
| Smoke CADR | 143 CFM |
|---|---|
| Room size (maker) | 222 sq ft |
| Carbon filter | Yes |
| Ionizer | None |
| Dust CADR | 153 CFM |
| Pollen CADR | 167 CFM |
Filters
| Filter life | 6 months |
|---|---|
| Replacement filter | Core 300-P-RF (also -RF-PA pet, -RF-TX toxin) |
Noise and power
| Noise, lowest | 24 dB(A) |
|---|---|
| Noise, highest | 54.5 dB(A) |
| Power draw | 56 W |
Other details
| Warranty | 2 years |
|---|---|
| Weight | 7.9 lb |
| Safety listing | ETL |
Maker’s figures, checked 3 Nov 2026.
Levoit Core 300-P questions
How often should I replace the Levoit Core 300-P filter?
Levoit suggests every 6 to 8 months, sooner in polluted air such as wildfire smoke. Clean the pre-filter every 2 to 4 weeks with a soft brush or vacuum; never wash the main filter.
Which filters fit the Levoit Core 300-P?
The standard Core 300-P-RF, with Core 300-P-RF-PA (pet allergy) and Core 300-P-RF-TX (toxin absorber) as options. Levoit also lists a Smoke Remover filter for it.
How big a room is the Core 300-P for?
Levoit gives about 222 sq ft at five air changes an hour. By Health Canada’s rule of a smoke CADR of two-thirds of the floor area, its CADR of 143 suits a room of about 215 sq ft.