Wildfire, smoke and episodic pollution

Is this product suitable for a designated clean-air room during wildfire smoke?

The NanoFlashing™ Air Filter is a panel filter for a forced-air system, and what it does in a room depends on that system.

The Air page states that ReinFire™ is made for homes and buildings facing wildfire smoke, and that INHALO™, a wall-mounted air cleaner built around a NanoFlashing™ Air Filter, is built to hold its airflow through a wildfire smoke season. Under wildfire smoke and ultrafine particles, the Validation page states: “In independent testing with real smoke from burning pine needles, NanoFlashing™ captured nearly 92% of ultrafine particles at 16.5 nanometres, far smaller than a coronavirus.” The report named for that testing is LMS Technologies, Report LMS#9904, 28 April 2025, a single-pass fractional efficiency test on a 24 × 24 × 2 in. pleated air filter in an ASHRAE 52.2 test duct, in accordance with standard LMS aerosol test procedures; it is a laboratory result on that filter, not a result in a room. NanoFlashing™ is passive. It generates no ozone, releases nothing, and adds nothing to what passes through. The NanoFlashing™ Air Filter is specified by nominal size, rated airflow and maximum face velocity, and its label states: “Results in a building depend on the system, the airflow, and how well the filter fits its track.” The label also states that the filter treats the air that passes through it, and that it works alongside ventilation and cleaning, not in place of them. A finished unit is chosen with the manufacturing partner that makes it, and the Terms of Use state that Site Content is not to be used to select, design, manufacture, validate, or make claims for a finished product. NanoFlashing™ is a technology; the name, rating and sale of a product that carries it are set by that product's maker and seller.

Source: NanoFlashing™ Air Filter label; C-POLAR — Terms of Use, section 3, https://cpolar.tech/terms/; C-POLAR — Validation, https://cpolar.tech/validation/; C-POLAR — NanoFlashing™ Air, https://cpolar.tech/air/.

Reviewed on 21 September 2026.

How should replacement planning account for a short but unusually heavy smoke event?

The label sets the replacement point: the pressure drop or the interval printed on the product, whichever comes first.

The Validation page states that NanoFlashing™ is built to maintain its polarity through a wildfire smoke event, and under wildfire smoke and ultrafine particles it names LMS Technologies, Report LMS#9904, 28 April 2025, a single-pass fractional efficiency test on a 24 × 24 × 2 in. pleated air filter in an ASHRAE 52.2 test duct, in accordance with standard LMS aerosol test procedures. A building's emergency plan is set by the people who run the building. NanoFlashing™ is a technology; the name, rating and sale of a product that carries it are set by that product's maker and seller.

Source: NanoFlashing™ Air Filter label; C-POLAR — Validation, https://cpolar.tech/validation/; LMS Technologies, Report LMS#9904, 28 April 2025, ASHRAE 52.2 test duct. A copy may be made available on our review of the request.

Reviewed on 21 September 2026.

Can the filter still be useful when the outdoor smoke smell remains noticeable indoors?

Smoke particles and smoke smell are different things: the filter captures airborne particles, and the company makes no claim about a smell.

Under wildfire smoke and ultrafine particles, the Validation page names LMS Technologies, Report LMS#9904, 28 April 2025, a single-pass fractional efficiency test on a 24 × 24 × 2 in. pleated air filter in an ASHRAE 52.2 test duct, in accordance with standard LMS aerosol test procedures. The filter captures airborne particles mechanically and by electrostatic attraction. NanoFlashing™ attracts negatively charged particles through electrostatic attraction.

C-POLAR publishes no evidence for a gas, a vapour or an odour, and it makes no claim about one. The Terms of Use state: “A reported result describes only what the identified test found.” The published record covers airborne particles and the organisms named in it, and it covers no gas, no vapour and no odour.

Source: C-POLAR — NanoFlashing™, https://cpolar.tech/nanoflashing/; C-POLAR — Validation, https://cpolar.tech/validation/; C-POLAR — Terms of Use, section 3, https://cpolar.tech/terms/.

Reviewed on 21 September 2026.

Does evidence for wildfire particles apply to smoke from burning plastics?

The company publishes no result for smoke from burning plastics.

What the company states about what the filter takes out of the air is this. NanoFlashing™ attracts negatively charged particles through electrostatic attraction. The filter captures airborne particles mechanically and by electrostatic attraction. The air items the company names are ultrafine particles, wildfire smoke and pollen.

The named air records are LMS Technologies, Report LMS#9904, 28 April 2025, a single-pass fractional efficiency test on a 24 × 24 × 2 in. pleated air filter in an ASHRAE 52.2 test duct, in accordance with standard LMS aerosol test procedures, and Report 6847, ASHRAE 52.2 with Appendix J, and Eurovent Certita Certification, Certificate No. 15.06.011, and each one covers the article and the conditions printed in it. Report 6847 is on a 24 × 24 × 30 in. pocket filter and Certificate No. 15.06.011 on a ten-pocket bag filter, not on a flat panel filter, and a rating belongs to the construction that was tested and to the conditions in the report. The Terms of Use state: “A reported result describes only what the identified test found.” The company publishes no result for that pollutant, and it does not carry a result across to one a test did not cover. Certificate No. 15.06.011 can be looked up at source in the Eurovent Certita Certification certified product directory.

Source: C-POLAR — NanoFlashing™, https://cpolar.tech/nanoflashing/; Statement of Classification for the NanoFlashing™ Air Filter, section 2.5, issued by NF Technical Products Inc.; C-POLAR — Validation, https://cpolar.tech/validation/; C-POLAR — Terms of Use, section 3, https://cpolar.tech/terms/; Eurovent Certita Certification certified product directory, read 19 September 2026, https://www.eurovent-certification.com/.

Reviewed on 21 September 2026.

Would a filter used during wildfire smoke need inspection before ordinary service resumes?

The label sets when the filter is replaced, and it is not washed, vacuumed, brushed, blown out or reused.

Under wildfire smoke and ultrafine particles, the Validation page names LMS Technologies, Report LMS#9904, 28 April 2025, a single-pass fractional efficiency test on a 24 × 24 × 2 in. pleated air filter in an ASHRAE 52.2 test duct, in accordance with standard LMS aerosol test procedures. The NanoFlashing™ Air Filter label directs replacement when the pressure drop reaches the value printed on the product, or at the interval printed on it, whichever comes first, and directs that the system not be run with no filter in the track. It also directs that the filter not be washed, vacuumed, brushed, blown out or reused. A filter left in service past that point is outside the instructions it was supplied with.

Source: NanoFlashing™ Air Filter label; C-POLAR — Validation, https://cpolar.tech/validation/.

Reviewed on 21 September 2026.

Can a household rely on a room purifier while its HVAC fan is off?

A NanoFlashing™ panel filter in a forced-air system treats air only while that system's own fan moves air through it, and a complete air cleaner moves air itself.

Passive describes the filter, not the system around it. The filter is passive. It draws no power, and it has no power supply, electrode, lamp or reservoir. In a forced-air system, the system's own fan moves air through the filter. A complete air cleaner still has to move air: INHALO™, the wall-mounted air cleaner named on the Air page, is built around a NanoFlashing™ Air Filter and runs continuously at breathing height. NanoFlashing™ is a technology; the name, rating and sale of a product that carries it are set by that product's maker and seller.

Source: Statement of Classification for the NanoFlashing™ Air Filter, section 2.4, issued by NF Technical Products Inc.; C-POLAR — NanoFlashing™ Air, https://cpolar.tech/air/; NanoFlashing™ Air Filter label, About This Product.

Reviewed on 21 September 2026.

What information is needed to compare recirculation with bringing in smoky outdoor air?

The company publishes no comparison between recirculating and bringing in outdoor air.

The label instructs: “Do not use where this filter would restrict airflow beyond the system's specification.” It also states: “Improper installation can reduce airflow or damage the equipment.” and “Results in a building depend on the system, the airflow, and how well the filter fits its track.” The filter is specified by nominal size, rated airflow and maximum face velocity.

C-POLAR publishes no pressure-drop curve, no thermal model and no control logic for a building. The design, the redundancy and the alarms of that system belong to the people who run it. How a system behaves when its filters change is decided by that system, and the label sets the filter's own limits.

Source: NanoFlashing™ Air Filter label; C-POLAR — Terms of Use, section 6, https://cpolar.tech/terms/.

Reviewed on 21 September 2026.

Could a smoke-loaded filter release odours after outdoor air improves?

The company makes no odour claim.

Under wildfire smoke and ultrafine particles, the Validation page names LMS Technologies, Report LMS#9904, 28 April 2025, a single-pass fractional efficiency test on a 24 × 24 × 2 in. pleated air filter in an ASHRAE 52.2 test duct, in accordance with standard LMS aerosol test procedures. The filter captures airborne particles mechanically and by electrostatic attraction. NanoFlashing™ attracts negatively charged particles through electrostatic attraction.

C-POLAR publishes no evidence for a gas, a vapour or an odour, and it makes no claim about one. The Terms of Use state: “A reported result describes only what the identified test found.” The published record covers airborne particles and the organisms named in it, and it covers no gas, no vapour and no odour.

Source: C-POLAR — NanoFlashing™, https://cpolar.tech/nanoflashing/; C-POLAR — Validation, https://cpolar.tech/validation/; C-POLAR — Terms of Use, section 3, https://cpolar.tech/terms/.

Reviewed on 21 September 2026.

Does evidence from a fresh smoke exposure apply to aged smoke transported over long distances?

A result belongs to the article and the conditions that were tested.

The Terms of Use state: “A reported result describes only what the identified test found.” They also state: “A test of C-POLAR material, a component, or a prototype does not establish the performance of a finished product that incorporates it. Construction, processing, storage, wear, cleaning, other components, and actual use may change the result.” and “Use evidence, specifications, instructions, and warnings specific to the actual finished product and use.”

What can be checked on any filter is the charge. The polarity is a positive electric charge at rest. It is measured as surface charge density, in nanocoulombs per square centimetre. The charge is measured on every production run, and the measurement can be repeated on any filter, upon request.

The company’s published smoke testing used real smoke from burning pine needles: the Validation page names LMS Technologies, Report LMS#9904, 28 April 2025, a single-pass fractional efficiency test on a 24 × 24 × 2 in. pleated air filter in an ASHRAE 52.2 test duct, in accordance with standard LMS aerosol test procedures, and the Statement of Classification cites LMS Technologies, Pine-Needle Smoke Report LMS#10471, 20 October 2025, which compared a pleated air filter of Aeropro media with C-POLAR against the same media without it. A published result belongs to the article that was tested, under the conditions named in the report that recorded it.

Source: C-POLAR — Terms of Use, section 3, https://cpolar.tech/terms/; Statement of Classification for the NanoFlashing™ Air Filter, NF Technical Products Inc., sections 2.2, 2.3 and 2.5; C-POLAR — Validation, https://cpolar.tech/validation/; LMS Technologies, Report LMS#9904, 28 April 2025, ASHRAE 52.2 test duct; LMS Technologies, Inc., Pine-Needle Smoke Report LMS#10471, 20 October 2025, single-pass fractional efficiency in an ASHRAE 52.2 test duct. A copy may be made available on our review of the request.

Reviewed on 21 September 2026.

Can evacuation-centre capacity be based on the number of filters installed?

The company publishes no occupancy figure and no capacity figure.

The NanoFlashing™ Air Filter is specified by nominal size, rated airflow and maximum face velocity, and its label states: “Results in a building depend on the system, the airflow, and how well the filter fits its track.” The label also states that the filter treats the air that passes through it, and that it works alongside ventilation and cleaning, not in place of them. A finished unit is chosen with the manufacturing partner that makes it, and the Terms of Use state that Site Content is not to be used to select, design, manufacture, validate, or make claims for a finished product.

Source: NanoFlashing™ Air Filter label; C-POLAR — Terms of Use, section 3, https://cpolar.tech/terms/.

Reviewed on 21 September 2026.

Would a filter address combustion gases after an indoor fire?

The company publishes no result for a combustion gas.

Under wildfire smoke and ultrafine particles, the Validation page names LMS Technologies, Report LMS#9904, 28 April 2025, a single-pass fractional efficiency test on a 24 × 24 × 2 in. pleated air filter in an ASHRAE 52.2 test duct, in accordance with standard LMS aerosol test procedures. The filter captures airborne particles mechanically and by electrostatic attraction. NanoFlashing™ attracts negatively charged particles through electrostatic attraction.

C-POLAR publishes no evidence for a gas, a vapour or an odour, and it makes no claim about one. The Terms of Use state: “A reported result describes only what the identified test found.” The published record covers airborne particles and the organisms named in it, and it covers no gas, no vapour and no odour.

Source: C-POLAR — NanoFlashing™, https://cpolar.tech/nanoflashing/; C-POLAR — Validation, https://cpolar.tech/validation/; C-POLAR — Terms of Use, section 3, https://cpolar.tech/terms/.

Reviewed on 21 September 2026.

Can the product be used during building fire cleanup under the proposed use instructions?

The label sets where the filter is used: forced-air heating, ventilation and air-conditioning systems in homes, businesses and institutions that take a panel filter of the stated size and run at or below the rated airflow and maximum face velocity.

The NanoFlashing™ Air Filter is a panel air filter for forced-air heating, ventilation and air-conditioning systems. The company publishes no result for fire cleanup, and it offers the filter for no work of that kind.

Work controlled by a workplace or a remediation requirement is done with the equipment that requirement calls for, and the filter for it is chosen under that requirement by the people responsible for the work. The Terms of Use state: “A reported result describes only what the identified test found.”

Source: NanoFlashing™ Air Filter label; C-POLAR — Terms of Use, section 3, https://cpolar.tech/terms/.

Reviewed on 21 September 2026.

Is a smoke-removal demonstration relevant to smoke entering a home continuously?

A demonstration is not the evidence.

Under wildfire smoke and ultrafine particles the records are LMS Technologies, Report LMS#9904, 28 April 2025, a single-pass fractional efficiency test on a 24 × 24 × 2 in. pleated air filter in an ASHRAE 52.2 test duct, in accordance with standard LMS aerosol test procedures, and Report 6847, ASHRAE 52.2 with Appendix J, and Eurovent Certita Certification, Certificate No. 15.06.011. Report 6847 is on a 24 × 24 × 30 in. pocket filter and Certificate No. 15.06.011 on a ten-pocket bag filter, not on a flat panel filter, and a rating belongs to the construction that was tested and to the conditions in the report. The Statement of Classification states at 2.5 that in single-pass laboratory testing the filter captured pine-needle smoke and ultrafine particles better than the control filter, and it cites LMS Technologies, Pine-Needle Smoke Report LMS#10471, 20 October 2025, for that testing. The NanoFlashing page states: “Conventional electrostatic charges fade in service, dragging performance down with them.” It also states: “NanoFlashing™ does not fade.” The Terms of Use state: “Images and descriptions may show concepts or prototypes. They are not specifications, instructions, validation reports, recommendations, warranties, offers, promises, or commitments.” They also state: “A reported result describes only what the identified test found.” The Validation page names the reports and certificates it lists with the institution and the number. An image is not the evidence. Certificate No. 15.06.011 can be looked up at source in the Eurovent Certita Certification certified product directory. Each numbered report the company cites is named in text with its institution and number, not only shown in a picture.

Source: C-POLAR — Terms of Use, sections 3 and 4, https://cpolar.tech/terms/; C-POLAR — Validation, https://cpolar.tech/validation/; C-POLAR — NanoFlashing™, https://cpolar.tech/nanoflashing/; Statement of Classification for the NanoFlashing™ Air Filter, section 2.5, issued by NF Technical Products Inc.; LMS Technologies, Inc., Pine-Needle Smoke Report LMS#10471, 20 October 2025, single-pass fractional efficiency in an ASHRAE 52.2 test duct; Eurovent Certita Certification certified product directory, read 19 September 2026, https://www.eurovent-certification.com/. A copy may be made available on our review of the request.

Reviewed on 21 September 2026.

Could high indoor humidity during a smoke event change the filter's performance?

The label directs use in dry air only, and directs that the filter not be used anywhere the media may become wet; the company publishes no humidity result.

Under wildfire smoke and ultrafine particles the records are LMS Technologies, Report LMS#9904, 28 April 2025, a single-pass fractional efficiency test on a 24 × 24 × 2 in. pleated air filter in an ASHRAE 52.2 test duct, in accordance with standard LMS aerosol test procedures, and Report 6847, ASHRAE 52.2 with Appendix J, and Eurovent Certita Certification, Certificate No. 15.06.011. Report 6847 is on a 24 × 24 × 30 in. pocket filter and Certificate No. 15.06.011 on a ten-pocket bag filter, not on a flat panel filter, and a rating belongs to the construction that was tested and to the conditions in the report. The Terms of Use state: “A reported result describes only what the identified test found.” They also state: “A test of C-POLAR material, a component, or a prototype does not establish the performance of a finished product that incorporates it. Construction, processing, storage, wear, cleaning, other components, and actual use may change the result.”

What can be checked on a sample after any handling is the charge. The polarity is a positive electric charge at rest. It is measured as surface charge density, in nanocoulombs per square centimetre. The charge is measured on every production run, and the measurement can be repeated on any filter, upon request.

Certificate No. 15.06.011 can be looked up at source in the Eurovent Certita Certification certified product directory.

Source: NanoFlashing™ Air Filter label; C-POLAR — Validation, https://cpolar.tech/validation/; C-POLAR — Terms of Use, section 3, https://cpolar.tech/terms/; Statement of Classification for the NanoFlashing™ Air Filter, NF Technical Products Inc., sections 2.2 and 2.3; Eurovent Certita Certification certified product directory, read 19 September 2026, https://www.eurovent-certification.com/.

Reviewed on 21 September 2026.

What happens if a filter supplier runs out of replacements during a regional smoke emergency?

A replacement filter is bought from the maker or the seller of the product, and this site holds no stock.

The Terms of Use state that the Site is informational only, and that it does not sell products, accept orders, quote binding prices, or process payments. The Terms of Use also name separate online stores, shop.cpolartechnologies.com and shopusa.cpolartechnologies.com, that are not part of the Site; a store and every purchase from it are governed only by the terms presented there. Those two stores are C-POLAR's own. Every commercial NanoFlashing™ product is made by a manufacturing partner, in their facility, in their format. The manufacturing partners named on the About and Air pages are Aero Pro, AQ Filter, BGE Indoor Air Quality Solutions, Olympic International and VOLZ Filters.

C-POLAR publishes no end-of-life notice period, no last-order arrangement and no storage life for held stock; those are terms of an agreement between the parties to it. The label instructs: “Store flat or on edge in the original packaging, indoors and dry, away from direct sunlight and moisture. Do not stack loads on the media.” NanoFlashing™ is a technology; the name, rating and sale of a product that carries it are set by that product's maker and seller.

Source: C-POLAR — Terms of Use, sections 1 and 6, https://cpolar.tech/terms/; C-POLAR — About, https://cpolar.tech/about/; C-POLAR — NanoFlashing™ Air, https://cpolar.tech/air/; NanoFlashing™ Air Filter label.

Reviewed on 21 September 2026.

Does a community clean-air programme need spare fans as well as spare filters?

The filter is passive and moves no air of its own.

Passive describes the filter, not the system around it. The filter is passive. It draws no power, and it has no power supply, electrode, lamp or reservoir. In a forced-air system, the system's own fan moves air through the filter. A complete air cleaner still has to move air: INHALO™, the wall-mounted air cleaner named on the Air page, is built around a NanoFlashing™ Air Filter and runs continuously at breathing height. NanoFlashing™ is a technology; the name, rating and sale of a product that carries it are set by that product's maker and seller.

Source: Statement of Classification for the NanoFlashing™ Air Filter, section 2.4, issued by NF Technical Products Inc.; C-POLAR — NanoFlashing™ Air, https://cpolar.tech/air/.

Reviewed on 21 September 2026.

Can a filter marketed for smoke be assumed suitable for occupational firefighting protection?

No. The company publishes no result for firefighting, and it offers the filter for no work of that kind.

The NanoFlashing™ Air Filter is a panel air filter for forced-air heating, ventilation and air-conditioning systems. The label sets where the filter is used: forced-air heating, ventilation and air-conditioning systems in homes, businesses and institutions that take a panel filter of the stated size and run at or below the rated airflow and maximum face velocity.

Work controlled by a workplace or a remediation requirement is done with the equipment that requirement calls for, and the filter for it is chosen under that requirement by the people responsible for the work. The Terms of Use state: “A reported result describes only what the identified test found.”

Source: NanoFlashing™ Air Filter label; C-POLAR — Terms of Use, section 3, https://cpolar.tech/terms/; C-POLAR — Validation, https://cpolar.tech/validation/.

Reviewed on 21 September 2026.

Would wildfire ash deposited indoors need separate cleanup despite operating the filter?

A filter acts on the air that passes through it, and it does not reach a surface or a source.

Under wildfire smoke and ultrafine particles, the Validation page names LMS Technologies, Report LMS#9904, 28 April 2025, a single-pass fractional efficiency test on a 24 × 24 × 2 in. pleated air filter in an ASHRAE 52.2 test duct, in accordance with standard LMS aerosol test procedures. The label states: “This filter treats the air that passes through it.” It also states: “It works alongside ventilation and cleaning, not in place of them.” and “Results in a building depend on the system, the airflow, and how well the filter fits its track.” The filter captures airborne particles mechanically and by electrostatic attraction. A filter does not reach a surface, a deposit or a source.

Source: NanoFlashing™ Air Filter label; C-POLAR — Validation, https://cpolar.tech/validation/; C-POLAR — Terms of Use, section 3, https://cpolar.tech/terms/.

Reviewed on 21 September 2026.

Does wildfire smoke trapped in the filter come back out into the house later?

A used NanoFlashing™ filter holds the particles it has captured.

The filter captures airborne particles mechanically and by electrostatic attraction. The Wildfire Smoke page states that the filter “captures and retains” wildfire smoke, and the Ultrafine Particles page states that it “captures and holds” ultrafine particles. The NanoFlashing™ Air Filter label states: “A used filter holds the dust and microorganisms it has taken out of the air.” The company publishes no measurement of captured material coming back off a NanoFlashing™ filter into the air. The Validation page reports measurements in four buildings where NanoFlashing™ was installed; at a financial landmark in London, particulates, bioaerosols and energy were all measured lower after the air handling unit filters were changed to NanoFlashing™. Each is one building over one period, and it is not a result for another building.

Source: C-POLAR — Wildfire Smoke, https://cpolar.tech/contaminants/wildfire-smoke/; C-POLAR — Ultrafine Particles, https://cpolar.tech/contaminants/ultrafine-particles/; NanoFlashing™ Air Filter label; C-POLAR — Validation, https://cpolar.tech/validation/.

Reviewed on 21 September 2026.

Does NanoFlashing™ work on cigarette, tobacco or secondhand smoke, as distinct from wildfire smoke?

The company publishes no result for cigarette, tobacco or secondhand smoke, and it does not carry a result across to a pollutant a test did not cover.

The smoke named in the company's published record is wildfire smoke, and the smoke in its laboratory testing was smoke from burning pine needles. What that record names for air is ultrafine particles, wildfire smoke and pollen, and for smoke it names LMS Technologies, Report LMS#9904, 28 April 2025, a single-pass fractional efficiency test on a 24 × 24 × 2 in. pleated air filter in an ASHRAE 52.2 test duct, in accordance with standard LMS aerosol test procedures. NanoFlashing™ attracts negatively charged particles through electrostatic attraction. The Terms of Use state: “A reported result describes only what the identified test found.”

Source: C-POLAR — Validation, https://cpolar.tech/validation/; C-POLAR — NanoFlashing™, https://cpolar.tech/nanoflashing/; C-POLAR — Terms of Use, section 3, https://cpolar.tech/terms/. A copy may be made available on our review of the request.

Reviewed on 21 September 2026.