NanoEFX air-filter treatment
NanoEFX | eco-SPRAY — sold internationally as NanoEFX, and as eco-SPRAY in Japan, the Philippines, Vietnam and Korea.
NanoEFX is a passive, nanostructured treatment applied to your engine's air filter — or any suitable intake-filter medium. It is not a fuel additive, oil additive, ECU remap, mechanical retrofit or powered device. It's a water-based spray that dries into a thin, breathable nano-coating. As the engine draws air through that treated surface, the coating is designed to condition the intake air before combustion, with the aim of supporting a cleaner, more complete and more efficient burn — see what we actually measure below.
Treat the air path. Improve the burn. Reduce waste.
What it is
- A passive nanostructured intake-air treatment
- Applied to the air filter or intake medium
- Water-based — dries to a thin, breathable coating
- Works before combustion, at the intake-air stage
- REACH compliant · water-based
What it isn't
- A fuel additive
- An oil additive
- An ECU remap or tuning
- A mechanical retrofit or powered device
We explain where fuel additives, oil additives and air treatment differ, and what evidence to ask for in each case.
How NanoEFX is designed to work
NanoEFX is designed to condition the intake-air path before combustion. The manufacturer describes the nanostructured coating and its constituent materials as interacting with the air passing through the treated filter, with the aim of supporting a more stable and complete combustion process.
What we actually measure
We do not infer performance from the proposed mechanism. We measure the outcomes: fuel consumption over operating time, exhaust emissions where instrumented measurements exist, and engine condition where post-treatment inspection data is available. See the evidence →
The ingredient system
The formulation contains mineral, plant-derived and inorganic components documented in the product's ingredient records. The functional roles described below reflect the manufacturer's proposed operating model; composition alone does not establish fuel or emissions performance.
A polar mineral documented in the ingredient records. The manufacturer describes it as making the treated filter a functional air-contact surface rather than a passive barrier — no wires or power, with the material itself described as interacting with airflow and humidity.
Documented in the ingredient records. The manufacturer describes it as carrying the surface-active, oxygen-facing character of the coating — acting before combustion, not as a fuel or exhaust additive.
Listed as a component of the formulation. In the manufacturer's proposed model the coating works with the oxygen already present in intake air, alongside silver, to prepare the air side of combustion. It does not add oxygen to the engine.
Documented in the ingredient records. The manufacturer describes zeolite as part of the mineral carrier system used to distribute the formulation across the treated surface, and designed to keep the filter breathable.
A documented component of the formulation. The manufacturer describes it as part of the binder system that helps the applied material remain on the filter medium while leaving the treatment designed to remain breathable.
The ingredient record identifies a Cladosiphon novae-caledoniae polysaccharide — a fucoidan-rich material derived from brown seaweed. The manufacturer describes it as part of the moisture-responsive formulation matrix, because real intake air always carries humidity.
The ingredient record identifies Chamaecyparis obtusa oil, the essential oil of the Japanese hinoki cypress. The manufacturer describes it as helping the treatment wet the filter medium and spread evenly across the filter area.
Water is documented as a component of the formulation. The manufacturer describes it as the carrier that brings the formulation onto the filter and then evaporates, leaving the dried coating in place.
These are the components identified in the product's ingredient records; the exact formulation and its concentrations are confidential and are not published. The records establish which materials are present — they do not establish particle size, so no component is described here as a nanoparticle. What has actually been measured is set out in the evidence section.
A spray, not a retrofit
Applied by your own team in minutes — no workshop, no parts, no downtime. How often it's reapplied depends on the vehicle or engine (see below).
Remove the air filter
Access the existing air filter — the same one you already service.
Apply NanoEFX spray
Spray NanoEFX evenly onto the filter. The water-based mist carries it on and evaporates.
Let it dry & reinstall
Leave it to dry for at least 20 minutes, then refit the filter. No new hardware, no calibration, no mechanic.
Run the engine
Operate the engine normally. Assess any fuel or emissions effect over an appropriate measurement period rather than from the first start.
What the safety data sheets say
Current EU, UK, US and UN/GHS safety data sheets, each dated 16 January 2024, identify NANO EFX as a mixture for internal combustion engines and record it as not classified under their applicable hazard-classification systems. No hazard labelling applies under those SDS regimes, and no special hand, eye, body or respiratory protection is specified for normal conditions of use.
The sheets report 0% VOC and describe the product as stable under normal conditions; the applicable sheets also record it as non-explosive and non-oxidising. The EU, UK and UN sheets describe it as not flammable. They advise avoiding heat and direct sunlight, and record transport as not regulated under the listed transport regimes. The EU sheet is prepared under the applicable REACH framework; it states that no chemical safety assessment has been carried out.
“Not classified” is a classification outcome under those systems, not a statement that the product carries no risk — handle it according to the sheet applicable in your jurisdiction. Safety data sheets exist in EU, UK, US and UN/GHS formats and in several languages, and are supplied on request.
Safety classification and performance evidence are separate. A safety data sheet addresses health, safety and environmental requirements for handling the product; it is not a guarantee of product performance and says nothing about fuel or emissions results. Those are documented in the evidence section.
What the evidence measures — and what combustion theory would predict
We keep these separate: fuel use is measured in field and trial records; CO, HC and NOx rest on one accredited measurement plus more limited observations; CO₂ is calculated from measured fuel use; soot, smoke and carbon deposits are combustion theory or a single study's observation, not routine NanoEFX measurements. No outcome here is guaranteed.
NanoEFX doesn't add energy or oxygen, and doesn't modify your engine. NOx response is engine- and control-system dependent.
A quick introduction
A short intro to NanoEFX's air-first approach to cleaner, more efficient combustion.
Go deeper
The full technical walk-through — conditioning the air path, the ingredients and the effects.
Read the full technical explainer
The challenge. Real combustion is never perfect. Under changing load, temperature, humidity, fuel quality and engine age, some fuel never releases its full energy — showing up as CO, unburned hydrocarbons, soot, smoke and higher fuel use. NanoEFX is designed to address this before combustion, at the intake-air stage.
What it's designed to do. Applied to the air filter, NanoEFX dries into a thin, breathable nano-coating. The filter still captures dust, but the manufacturer designs its surface to also act as a passive nano-interface between the atmosphere and the engine. It doesn't add oxygen, replace air, force electricity into the intake, or change hardware — it is designed to condition the intake-air pathway.
In the intake pathway — the manufacturer's proposed mechanism. As air passes the treated surface, the manufacturer describes it as interacting with polar mineral particles (tourmaline), silver and silver-oxygen chemistry, porous mineral carriers (zeolite) and moisture-responsive components — all held by a stable binder. This is the manufacturer's description of how the coating is designed to work, not something we have independently measured at the particle level. On that basis, NanoEFX is designed to help the engine draw air through a treated surface intended for cleaner, more stable combustion.
Inside the engine. Better-prepared intake air could in principle support more stable ignition, more consistent flame development and more complete fuel oxidation — reducing incomplete-burn zones and fuel waste. It doesn't override injection timing, boost or engine management; it is designed to support the air side only.
What we actually measure. We do not infer performance from the mechanism above — we measure outcomes. More complete combustion would generally be expected to reduce products of incomplete combustion such as CO and unburned hydrocarbons; our one accredited measurement, by JATA in 2013 on a single vehicle, recorded lower CO, HC and NOx after treatment, and we do not generalise that one result to every engine. We hold no instrumented NanoEFX measurement of soot or smoke. Where fuel consumption falls, fuel-related CO₂ falls proportionally when calculated from the fuel burned — a calculated consequence of lower fuel consumption, not a separately demonstrated exhaust-treatment effect. On carbon deposits, one marine teardown study recorded less carbon adhesion on the treated side, supported by photographs; the inspecting company's own work report recorded no significant difference in overall fouling — we publish both readings rather than pick one, and treat it as an observed indication in that study, not a guaranteed maintenance outcome. NOx is different again: it depends on combustion temperature and the engine's own emissions-control strategy, so its response is engine-dependent.
Where it applies. Any combustion engine that breathes through a filter or suitable intake medium — trucks, buses, vans, marine, generators, construction, agriculture, mining, rail and more.
Treat the air path. Improve the burn. Reduce waste.