Masks and respiratory products

What fit, filtration and workplace-use evidence applies to the complete product independently of the material claim?

The company publishes no finished-mask evidence, and it offers no respirator, mask or insert.

The nearest record is on the material: The Open University of Hong Kong, Test Report IRITS2020007030001R1, 7 June 2021, measured bacterial filtration efficiency on a spunlace nonwoven by a method modified from ASTM F2101:2019, after accelerated ageing to ASTM F1980-16 equivalent to five years at room temperature; it is a material test, not a fit or workplace result. A copy may be made available on our review of the request.

The Terms of Use state that, as of their effective date, the Water, Textiles, Food packaging, and Medical devices chapters describe Research Applications, and that they do not describe finished products currently available from C-POLAR for those uses. What the Textiles chapter publishes is the material: the NanoFlashing™ Textile has a permanent positive polarity, a fixed positive charge, and the fabric stays waterproof, breathable, strong and washable. Fit testing, filtration testing of a complete mask and workplace protection factors are evidence about a finished respirator, and they are held by whoever makes and certifies that respirator.

The Terms of Use state: “A test of C-POLAR material, a component, or a prototype does not establish the performance of a finished product that incorporates it.”

Source: C-POLAR — Terms of Use, sections 3, 4 and 5, https://cpolar.tech/terms/; C-POLAR — NanoFlashing™ Textile, https://cpolar.tech/textile/; The Open University of Hong Kong, Test Report IRITS2020007030001R1, 7 June 2021. A question about a particular product can be sent to [email protected] or +1 604 630 6830.

Reviewed on 21 September 2026.

Which claimed performance depends on fit or user behavior that the material evidence does not measure?

The company publishes no finished-mask evidence, and it offers no respirator, mask or insert.

The nearest record is on the material: The Open University of Hong Kong, Test Report IRITS2020007030001R1, 7 June 2021, measured bacterial filtration efficiency on a spunlace nonwoven by a method modified from ASTM F2101:2019, after accelerated ageing to ASTM F1980-16 equivalent to five years at room temperature; it is a material test, not a fit or workplace result. A copy may be made available on our review of the request.

The Terms of Use state that, as of their effective date, the Water, Textiles, Food packaging, and Medical devices chapters describe Research Applications, and that they do not describe finished products currently available from C-POLAR for those uses. What the Textiles chapter publishes is the material: the NanoFlashing™ Textile has a permanent positive polarity, a fixed positive charge, and the fabric stays waterproof, breathable, strong and washable. Anything that depends on how a mask sits on a face, on how long it is worn and on how the wearer behaves is outside what a material test measures, and the company has published no such measurement.

The Terms of Use state: “A test of C-POLAR material, a component, or a prototype does not establish the performance of a finished product that incorporates it.”

Source: C-POLAR — Terms of Use, sections 3, 4 and 5, https://cpolar.tech/terms/; C-POLAR — NanoFlashing™ Textile, https://cpolar.tech/textile/; The Open University of Hong Kong, Test Report IRITS2020007030001R1, 7 June 2021. A question about a particular product can be sent to [email protected] or +1 604 630 6830.

Reviewed on 21 September 2026.

Can NanoFlashing material be added to a respirator without changing its approved configuration?

Any change to a respirator's certified configuration is a matter for the body that certified it and for the manufacturer named in the certification, and the company offers no respirator, mask or insert.

No authority has approved, registered, cleared or endorsed the NanoFlashing™ Air Filter, and the company classifies its own article. The Terms of Use state that, as of their effective date, the Water, Textiles, Food packaging, and Medical devices chapters describe Research Applications, and that they do not describe finished products currently available from C-POLAR for those uses. The Terms of Use state: “Nothing on the Site authorizes anyone to manufacture, integrate, market, resell, or describe a product as C-POLAR-enabled.” The Terms also state: “Nothing on the Site grants a patent, trademark, trade-secret, know-how, manufacturing, commercialization, or other technology license.”

Source: C-POLAR — Terms of Use, sections 4, 5 and 8, https://cpolar.tech/terms/. A question about a particular product can be sent to [email protected] or +1 604 630 6830.

Reviewed on 21 September 2026.

Does a replaceable insert affect the seal of the mask that holds it?

The company publishes no finished-mask evidence, and it offers no respirator, mask or insert.

The Terms of Use state that, as of their effective date, the Water, Textiles, Food packaging, and Medical devices chapters describe Research Applications, and that they do not describe finished products currently available from C-POLAR for those uses. What the Textiles chapter publishes is the material: the NanoFlashing™ Textile has a permanent positive polarity, a fixed positive charge, and the fabric stays waterproof, breathable, strong and washable. A seal is a property of a complete mask on a particular face, and nothing the company publishes measures it.

The Terms of Use state: “A test of C-POLAR material, a component, or a prototype does not establish the performance of a finished product that incorporates it.”

Source: C-POLAR — Terms of Use, sections 3, 4 and 5, https://cpolar.tech/terms/; C-POLAR — NanoFlashing™ Textile, https://cpolar.tech/textile/. A question about a particular product can be sent to [email protected] or +1 604 630 6830.

Reviewed on 21 September 2026.

Could added resistance make a mask difficult to breathe through during exertion?

The company publishes no finished-mask evidence, and it offers no respirator, mask or insert.

The Terms of Use state that, as of their effective date, the Water, Textiles, Food packaging, and Medical devices chapters describe Research Applications, and that they do not describe finished products currently available from C-POLAR for those uses. What the Textiles chapter publishes is the material: the NanoFlashing™ Textile has a permanent positive polarity, a fixed positive charge, and the fabric stays waterproof, breathable, strong and washable. Breathing resistance is a property of a complete mask, measured on that mask, and the company publishes no breathing-resistance result for any wearable product.

The Terms of Use state: “A test of C-POLAR material, a component, or a prototype does not establish the performance of a finished product that incorporates it.”

Source: C-POLAR — Terms of Use, sections 3, 4 and 5, https://cpolar.tech/terms/; C-POLAR — NanoFlashing™ Textile, https://cpolar.tech/textile/. A question about a particular product can be sent to [email protected] or +1 604 630 6830.

Reviewed on 21 September 2026.

Does a wearable version have evidence for prolonged exposure to exhaled moisture?

The company publishes no result for that exposure.

The conditions listed on the Validation page are heavy dust loaded, fast air flow, used filter for 1 year, after 60 washes, after 2 years of storage, and after 60C for 64 days. Prolonged exposure to exhaled moisture is not among them, and the company does not carry a result across to a condition a test did not cover. The Terms of Use state that, as of their effective date, the Water, Textiles, Food packaging, and Medical devices chapters describe Research Applications, and that they do not describe finished products currently available from C-POLAR for those uses. A question about a particular product or market can be sent to [email protected] or +1 604 630 6830.

Source: C-POLAR — Validation, https://cpolar.tech/validation/; C-POLAR — Terms of Use, sections 3 and 4, https://cpolar.tech/terms/.

Reviewed on 21 September 2026.

Can facial movement shift the treated insert away from the intended airflow path?

The company publishes no finished-mask evidence, and it offers no respirator, mask or insert.

The Terms of Use state that, as of their effective date, the Water, Textiles, Food packaging, and Medical devices chapters describe Research Applications, and that they do not describe finished products currently available from C-POLAR for those uses. What the Textiles chapter publishes is the material: the NanoFlashing™ Textile has a permanent positive polarity, a fixed positive charge, and the fabric stays waterproof, breathable, strong and washable. Where a part sits inside a mask while a face moves is a property of that mask's design, and it is assessed by whoever designs it.

The Terms of Use state: “A test of C-POLAR material, a component, or a prototype does not establish the performance of a finished product that incorporates it.”

Source: C-POLAR — Terms of Use, sections 3, 4 and 5, https://cpolar.tech/terms/; C-POLAR — NanoFlashing™ Textile, https://cpolar.tech/textile/.

Reviewed on 21 September 2026.

Is the claimed function intended for inhaled air, exhaled air or both?

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

NanoFlashing™ is passive. It generates no ozone, releases nothing, and adds nothing to what passes through. The company offers no respirator, mask or insert. What it states is the property and what it does in a filter: NanoFlashing™ attracts negatively charged particles through electrostatic attraction, the filter captures airborne particles mechanically and by electrostatic attraction, and the label for the NanoFlashing™ Air Filter states: “This filter treats the air that passes through it.” The Terms of Use state that, as of their effective date, the Water, Textiles, Food packaging, and Medical devices chapters describe Research Applications, and that they do not describe finished products currently available from C-POLAR for those uses.

Source: C-POLAR — NanoFlashing™, https://cpolar.tech/nanoflashing/; NanoFlashing™ Air Filter label, About this product; C-POLAR — Terms of Use, section 4, https://cpolar.tech/terms/.

Reviewed on 21 September 2026.

Does the evidence cover a mask with an exhalation valve?

The company publishes no finished-mask evidence, and it offers no respirator, mask or insert.

The Terms of Use state that, as of their effective date, the Water, Textiles, Food packaging, and Medical devices chapters describe Research Applications, and that they do not describe finished products currently available from C-POLAR for those uses. What the Textiles chapter publishes is the material: the NanoFlashing™ Textile has a permanent positive polarity, a fixed positive charge, and the fabric stays waterproof, breathable, strong and washable. A valved mask is a distinct finished product, and the company publishes no result for one.

The Terms of Use state: “A test of C-POLAR material, a component, or a prototype does not establish the performance of a finished product that incorporates it.”

Source: C-POLAR — Terms of Use, sections 3, 4 and 5, https://cpolar.tech/terms/; C-POLAR — NanoFlashing™ Textile, https://cpolar.tech/textile/. A question about a particular product can be sent to [email protected] or +1 604 630 6830.

Reviewed on 21 September 2026.

Can a wearer identify which side of an insert should face the skin?

The manufacturer and seller of a finished product are responsible for its design, manufacture, labeling, instructions, claims, sale, and warranty, except for a responsibility C-POLAR expressly accepts in a Separate Agreement.

The company publishes no finished-mask evidence, and it offers no respirator, mask or insert. The Terms of Use state that, as of their effective date, the Water, Textiles, Food packaging, and Medical devices chapters describe Research Applications, and that they do not describe finished products currently available from C-POLAR for those uses. How a part is oriented, and how a wearer is told which way it goes, are set by the manufacturer of that product.

Source: C-POLAR — Terms of Use, sections 4 and 6, https://cpolar.tech/terms/.

Reviewed on 21 September 2026.

Could loose edges of an insert contact the lips or nostrils?

The company publishes no finished-mask evidence, and it offers no respirator, mask or insert.

The Terms of Use state that, as of their effective date, the Water, Textiles, Food packaging, and Medical devices chapters describe Research Applications, and that they do not describe finished products currently available from C-POLAR for those uses. What the Textiles chapter publishes is the material: the NanoFlashing™ Textile has a permanent positive polarity, a fixed positive charge, and the fabric stays waterproof, breathable, strong and washable. Where an edge sits against a face is a property of a finished mask, and it is assessed by whoever designs and sells that mask. What the company states about skin contact is a certification and a laboratory study of the material: NanoFlashing™ is certified to OEKO-TEX® Standard 100, Product Class II, the class for products in direct contact with skin, under OEKO-TEX Service GmbH, Certificate 17.0.25812, and Product Safety Labs, Study 65324, completed 31 January 2024, reported that the material it tested “is not considered to be a contact sensitizer”. A copy may be made available on our review of the request.

The Terms of Use state: “A test of C-POLAR material, a component, or a prototype does not establish the performance of a finished product that incorporates it.” Certificate 17.0.25812 can be checked at source in OEKO-TEX’s public label check.

Source: C-POLAR — Terms of Use, sections 3, 4 and 5, https://cpolar.tech/terms/; C-POLAR — NanoFlashing™ Textile, https://cpolar.tech/textile/; C-POLAR — Validation, https://cpolar.tech/validation/; Product Safety Labs, Study 65324, completed 31 January 2024; OEKO-TEX Label Check, read 19 September 2026, https://www.oeko-tex.com/en/label-check.

Reviewed on 21 September 2026.

Does the material change the mask's flammability classification?

The company publishes no fire or flammability result for a mask, an insert or any other wearable product.

The Validation page states: “NanoFlashing™ complies with UL 900, ULC-S111, DIN 53438 and EU RoHS.” The records for UL 900 and ULC-S111 are Intertek Building & Construction reports on filter articles, and the records for DIN 53438 are RST Rail System Testing Reports P60-22-0003 and P60-24-0297, under DIN 53438-3 on filter media. The records named on the Validation page include Intertek Building & Construction, Report 105175501SAT-001 on a panel filter, Report 104974202SAT-001 on a bag filter, Report 105169484SAT-001 on a fan coil filter, Report 106093268SAT-001 on a pleated filter and Report 106079483SAT-001 on a pocket filter. A reported result describes only what the identified test found.

A flammability classification for a finished mask is established by whoever makes and tests that mask.

Source: C-POLAR — Validation, https://cpolar.tech/validation/; 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.

Would using the insert affect speech intelligibility at work?

The company publishes no finished-mask evidence, and it offers no respirator, mask or insert.

The Terms of Use state that, as of their effective date, the Water, Textiles, Food packaging, and Medical devices chapters describe Research Applications, and that they do not describe finished products currently available from C-POLAR for those uses. What the Textiles chapter publishes is the material: the NanoFlashing™ Textile has a permanent positive polarity, a fixed positive charge, and the fabric stays waterproof, breathable, strong and washable. Speech through a mask is a property of that mask, and the company publishes no measurement of it.

The Terms of Use state: “A test of C-POLAR material, a component, or a prototype does not establish the performance of a finished product that incorporates it.”

Source: C-POLAR — Terms of Use, sections 3, 4 and 5, https://cpolar.tech/terms/; C-POLAR — NanoFlashing™ Textile, https://cpolar.tech/textile/. A question about a particular product can be sent to [email protected] or +1 604 630 6830.

Reviewed on 21 September 2026.

Can an insert obstruct a respirator's valves or sensors?

The company publishes no finished-mask evidence, and it offers no respirator, mask or insert.

The Terms of Use state that, as of their effective date, the Water, Textiles, Food packaging, and Medical devices chapters describe Research Applications, and that they do not describe finished products currently available from C-POLAR for those uses. What the Textiles chapter publishes is the material: the NanoFlashing™ Textile has a permanent positive polarity, a fixed positive charge, and the fabric stays waterproof, breathable, strong and washable. The valves, sensors and airways of a respirator belong to that respirator, and whether anything may be placed near them is decided by its manufacturer and by the body that certified it.

The Terms of Use state: “A test of C-POLAR material, a component, or a prototype does not establish the performance of a finished product that incorporates it.”

Source: C-POLAR — Terms of Use, sections 3, 4 and 5, https://cpolar.tech/terms/; C-POLAR — NanoFlashing™ Textile, https://cpolar.tech/textile/.

Reviewed on 21 September 2026.

Does the product have a documented storage limit after its individual pack is opened?

The company publishes no finished-mask evidence, and it offers no respirator, mask or insert.

The Terms of Use state that, as of their effective date, the Water, Textiles, Food packaging, and Medical devices chapters describe Research Applications, and that they do not describe finished products currently available from C-POLAR for those uses. What the Textiles chapter publishes is the material: the NanoFlashing™ Textile has a permanent positive polarity, a fixed positive charge, and the fabric stays waterproof, breathable, strong and washable. The company offers no such product, so it publishes no opened-pack limit for one. The NanoFlashing™ Air Filter label directs: “Store flat or on edge in the original packaging, indoors and dry, away from direct sunlight and moisture.”

The Terms of Use state: “A test of C-POLAR material, a component, or a prototype does not establish the performance of a finished product that incorporates it.”

Source: C-POLAR — Terms of Use, sections 3, 4 and 5, https://cpolar.tech/terms/; C-POLAR — NanoFlashing™ Textile, https://cpolar.tech/textile/; NanoFlashing™ Air Filter label. A question about a particular product can be sent to [email protected] or +1 604 630 6830.

Reviewed on 21 September 2026.

Can a disposable mask containing this material be shared between users under any stated instructions?

The manufacturer and seller of a finished product are responsible for its design, manufacture, labeling, instructions, claims, sale, and warranty, except for a responsibility C-POLAR expressly accepts in a Separate Agreement.

The company publishes no finished-mask evidence, and it offers no respirator, mask or insert. The Terms of Use state that, as of their effective date, the Water, Textiles, Food packaging, and Medical devices chapters describe Research Applications, and that they do not describe finished products currently available from C-POLAR for those uses. Whether a product may be shared, and what must be said about it, are set by the manufacturer of that product. For the one article the company does label, the NanoFlashing™ Air Filter, the instruction is plain: “Do not wash, vacuum, brush, blow out or reuse this filter.”

Source: C-POLAR — Terms of Use, sections 4 and 6, https://cpolar.tech/terms/; NanoFlashing™ Air Filter label, Directions for Use.

Reviewed on 21 September 2026.

Does a wearable claim cover users with facial hair that affects fit?

The company publishes no finished-mask evidence, and it offers no respirator, mask or insert.

The Terms of Use state that, as of their effective date, the Water, Textiles, Food packaging, and Medical devices chapters describe Research Applications, and that they do not describe finished products currently available from C-POLAR for those uses. What the Textiles chapter publishes is the material: the NanoFlashing™ Textile has a permanent positive polarity, a fixed positive charge, and the fabric stays waterproof, breathable, strong and washable. Fit on a face with facial hair is a property of a complete mask on a particular wearer, and nothing the company publishes measures it.

The Terms of Use state: “A test of C-POLAR material, a component, or a prototype does not establish the performance of a finished product that incorporates it.”

Source: C-POLAR — Terms of Use, sections 3, 4 and 5, https://cpolar.tech/terms/; C-POLAR — NanoFlashing™ Textile, https://cpolar.tech/textile/.

Reviewed on 21 September 2026.

Could a strap replacement change the applicability of the finished-mask evidence?

The company publishes no finished-mask evidence, and it offers no respirator, mask or insert.

The Terms of Use state that, as of their effective date, the Water, Textiles, Food packaging, and Medical devices chapters describe Research Applications, and that they do not describe finished products currently available from C-POLAR for those uses. What the Textiles chapter publishes is the material: the NanoFlashing™ Textile has a permanent positive polarity, a fixed positive charge, and the fabric stays waterproof, breathable, strong and washable. A strap is part of a finished mask, and whether changing one affects that mask's evidence is decided by whoever holds that evidence.

The Terms of Use state: “A test of C-POLAR material, a component, or a prototype does not establish the performance of a finished product that incorporates it.” 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 3, 4 and 5, https://cpolar.tech/terms/; C-POLAR — NanoFlashing™ Textile, https://cpolar.tech/textile/.

Reviewed on 21 September 2026.

Can a purchaser verify that supplied masks match the model in the approval record?

A supplied mask is checked against the certification record held by the body that issued it.

No authority has approved, registered, cleared or endorsed the NanoFlashing™ Air Filter, and the company classifies its own article. The company publishes no finished-mask evidence, and it offers no respirator, mask or insert. The Terms of Use state: “A citation, quotation, name, logo, link, or third-party test does not by itself mean that the third party sponsors, endorses, certifies, or approves C-POLAR, a C-POLAR product, a Site claim, or a proposed use.” They also state that no one may “State or imply that C-POLAR has approved, endorsed, licensed, partnered with, or verified you, your organization, or your product, when it has not.” 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 7 and 9, https://cpolar.tech/terms/. A question about a particular product can be sent to [email protected] or +1 604 630 6830.

Reviewed on 21 September 2026.

Does the packaging clearly distinguish an industrial respirator from a general face covering?

What is printed on a pack, and how one product is distinguished from another on it, is set by the manufacturer and seller of that product.

No authority has approved, registered, cleared or endorsed the NanoFlashing™ Air Filter, and the company classifies its own article. The company publishes no finished-mask evidence, and it offers no respirator, mask or insert. The Terms of Use state: “Nothing on the Site authorizes anyone to manufacture, integrate, market, resell, or describe a product as C-POLAR-enabled.”

For the one article the company does label, the NanoFlashing™ Air Filter, the label states plainly what it is: a panel air filter for forced-air heating, ventilation and air-conditioning systems, and that it is not a medical device and is not intended to diagnose, treat, cure or prevent disease.

Source: C-POLAR — Terms of Use, sections 5 and 6, https://cpolar.tech/terms/; NanoFlashing™ Air Filter label, About this product.

Reviewed on 21 September 2026.