Portable air cleaner questions
Connect the actual rating, room and operating setting.
Separate active smoke from recovery.
- Follow current local smoke and evacuation guidance.
- Confirm permission to return after an evacuation.
- Assess settled residue and building damage separately.
- Compare smoke CADR and the actual room size.
- Include ceiling height, noise and compatible filters in the comparison.
- A particle rating does not establish gas removal.
Compare the right performance information
Health Canada’s portable-air-cleaner guidance discusses particle performance and room sizing. Read the actual smoke CADR, product information and operating conditions. A marketing area claim or unfiltered fan airflow should not be substituted for the relevant clean-air performance.
Particle and gas removal are different questions. Ask what the actual device addresses and what it leaves unresolved. Health Canada advises against ozone-generating devices in homes.
Make a product comparison record
| Field | What to collect |
|---|---|
| Room | Area/volume and intended use. |
| Rating | Actual smoke CADR and stated test/setting. |
| Operation | Relevant setting, noise and manufacturer instructions. |
| Maintenance | Compatible filter/media and replacement requirements. |
| Limits | What source or contaminant is not addressed. |
Use arithmetic without inventing a target
The airflow worksheet calculates volume and flow from an ACH assumption you enter. It does not recommend a household ACH, certify a device or design a restoration enclosure. Bring the transparent numbers and actual product rating to the appropriate professional.
Do not interpret the worksheet’s result as a guarantee of a safe room. Current conditions, sources, system behavior and public-health advice remain relevant.
Keep the source question open
Ask whether smoke is still entering, whether indoor activities add pollutants and whether a separate property assessment is needed after the event. A device comparison is one part of the plan, not a diagnosis of the building.
Work through one room comparison
Health Canada uses a general minimum smoke-CADR guideline of two-thirds of room area in square feet. For a 12-by-15-foot room, 180 square feet gives a smoke CADR of at least 120. The area rating assumes an 8-foot ceiling; higher ceilings require a device rated for a larger room. Follow the actual label and instructions.
This household selection example is not a restoration enclosure design or a clearance test. It helps you compare product information without substituting a large marketing coverage claim for the relevant smoke rating.
Compare everyday use as well as the headline number
- Write the smoke CADR and its units exactly as listed.
- Measure the actual room and note ceiling height.
- Check whether airflow can remain unobstructed in the planned location.
- Compare noise at the setting you expect to use.
- Confirm the filter model, availability and manufacturer maintenance instructions.
- Record any gas-removal claim separately from particle performance.
Keep the product sheet with the comparison. If the rating or intended use is unclear, ask the manufacturer or an appropriate professional before buying a device for that purpose.
Take a useful brief
into the next conversation.
Organize your observations with a planning tool. Review the brief before choosing to share it.
Questions you may have
Is the biggest advertised coverage area the best comparison?
Use the actual smoke CADR, room rating and operating information. Check the assumptions behind a coverage claim, including ceiling height and the setting used.
Will carbon media perform like a HEPA filter?
They address different purposes. HEPA filtration concerns particles; sorbent media may address some gases. A smoke CADR does not establish the performance or capacity of the gas-removal media.
References and scope
- Using a portable air cleaner — Health Canada.
Household particle filtration and device selection; not a restoration containment design. - Wildfire smoke and health — Health Canada / ECCC.
Smoke exposure guidance and current advisories; does not clear a fire-damaged building for entry. - Guidance for cleaner air spaces during wildfire events — Health Canada.
Guidance for cleaner air spaces; actual HVAC selection and operation need appropriate expertise.
Source links checked September 30, 2026. General guidance and original planning questions do not establish the condition, exposure risk or clearance of a property.
Smoke damage?
Start with a clear next step.
Describe what is known, where the property is and what you need help deciding. The HAUSE team reviews the request and, with your consent, may connect you with a suitable provider if available.
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