Independently Verified in Certified Laboratories

The Science Behind
Our Claims

Every claim A-ARK makes is backed by certified independent testing conducted by Okinawa Environmental Science Center, a government-affiliated public research institute. Evidence, not marketing.

2 Independent Test Reports

4 Pathogen Types Tested

0 Colonies on Treated Samples

Testing Authority

Tested by an Independent Public Institution

A-ARK's photocatalytic coating was submitted to the Okinawa Environmental Science Center (General Foundation — Okinawa Environmental Science Center) — an independent government-affiliated environmental testing body — to verify the antibacterial and anti-mold effectiveness of the Nano Ark coating system.

Two separate reports were produced in different years, testing different pathogens under controlled laboratory conditions. Both reports produced consistent, unambiguous results.

Okinawa Environmental Science Center General Foundation — Independent Public Research Institute

2022 Anti-Mold Efficacy Test
Report #2021-B-02641-01

2021 Antibacterial Efficacy Test
E. coli (Escherichia coli)

Mechanism of Action

How Nano Ark Eliminates Pathogens

Unlike ordinary disinfectants that wash away, the FTO nano catalyst bonds permanently to surfaces and continuously neutralizes pathogens through a 4-stage process.

Nano Bonding

Nano-scale titanium dioxide (TiO₂) particles coat every surface — walls, fabrics, AC units — forming an invisible, permanent layer. Invisible, odorless, and imperceptible to touch.

Radical Generation

The Ra·TiO catalyst triggers a redox reaction, continuously generating hydroxyl radicals (OH·) on the coated surface. These reactive species break down bacterial cell membranes.

Pathogen Elimination

Bacteria, viruses, mold spores, and odor-causing compounds that land on treated surfaces are broken down at the molecular level — converted into harmless CO₂ and water.

Self-Cleaning Cycle

The Fe-apatite structure in the coating attracts and absorbs odor molecules (VOCs, formaldehyde, ammonia) and continuously breaks them down — no UV light required.

Traditional Photocatalyst

Relies on UV light from sunlight or dedicated lamps to generate active radicals. Completely inactive in dark spaces, shaded rooms, or at night — leaving most indoor areas with zero protection.

Inactive in the dark

FTO
Difference

A-ARK FTO Nano Catalyst

Uses Ra·TiO technology — operates via electron excitation with no light source required. The catalytic cycle runs 24/7 regardless of lighting, protecting every corner of your space.

Active 24/7 under any lighting conditions

Test Report · June 2021

Test 1: E. coli Antibacterial Efficacy

Escherichia coli — the standard benchmark organism used in safety testing worldwide — was introduced into photocatalyst-treated and control (saline) petri dishes and incubated under fluorescent light for 24 hours.

Test Organism E. coli (Escherichia coli)

Initial Count 2.78 × 10⁶ / plate

Duration 24 hours under fluorescent light

Testing Body Okinawa Environmental Science Center

Control (Saline)

3.75 × 10⁵

Colony Forming Units / plate

375,000 bacterial colonies survived and multiplied after 24 hours. Significant bacterial load confirmed across the entire dish.

NANO ARK TREATED

Colony Forming Units / plate

Only 40 colonies detected — a 99.989% reduction. Near-sterile result from a single application after 24 hours of exposure.

99.989% E. coli reduction confirmed by independent testing authority

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Cover Petri Dish Results Lab Setup

Test Report · May 2022

Test 2: Anti-Mold Efficacy — 3 Strains

Three mold strains — Penicillium, Cladosporium, and Trichoderma — were tested simultaneously. All three are common threats in humid indoor environments. Each strain was introduced to photocatalyst-treated plates and incubated under fluorescent light (1,460 lux) for 72 hours.

Mold Strains 3 Species

Initial Count 8.4×10⁴ – 2.5×10⁵ / plate

Duration 72 hours at 1,460 lux

Report No. 2021-B-02641-01

Surviving Colony Count After Treatment

Mold Species

Control (PBS)

Nano Ark

Result

Penicillium Penicillium

6.27 × 10⁵

100%

Cladosporium Cladosporium

5.57 × 10⁴

100%

Trichoderma Trichoderma

TNTC*

100%

* TNTC = Too Numerous To Count

3 / 3 All mold strains fully eliminated — zero colonies on treated samples

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Cover Petri Dish Photos Results Table

Real-World Comparison Test

Nano Ark vs. Competitor —
ATP Luminescence Test

An ATP luminometer measures bacterial activity in real time. Lower numbers mean a cleaner surface. Nano Ark was tested head-to-head against a competitor product. The results speak for themselves.

What is ATP Luminescence Testing?

ATP is present in all living cells, including bacteria. A luminometer detects ATP on a surface — higher readings mean more bacteria. It's the gold-standard contamination test in food safety and medical environments.

Continuous Catalytic Reduction

Ordinary disinfectants fade over time. Nano Ark's FTO catalyst keeps working — surfaces get cleaner the longer it runs. No reapplication, no UV lamps, no maintenance.

Certified — Complete Evidence

Nano Ark doesn't just clean — it protects continuously. Every surface. All the time. For up to 2 years.

Nano Ark outperformed the competitor at every measurement point after hour one — and the gap kept widening.

Luminometer comparison - Nano Ark vs competitor at 1hr, 2hr, 3hr

1 Hour Near-equal start

2 Hours Nano Ark pulls ahead

3 Hours Decisive gap — Nano Ark wins

Real-World Application

In Practice — Hotel Application in Okinawa

A-ARK's certified technicians applied Nano Ark coating to hotel guest rooms and common areas throughout Okinawa. Walls, ceilings, AC units, curtains, beds, and sofas — fully coated in one pass.

A-ARK technician applying nano coating to hotel room wall

Nano coating applied to all surfaces including AC units — no masking required

A-ARK technician applying nano coating to hotel ceiling and curtains

Ceilings and soft furnishings coated in a single session

~20 min / room

0 min wait before re-entry

0 masking or protective sheets needed

2yr guaranteed protection

Safety Profile

100% Natural. No Compromise.

The active ingredient in Nano Ark is titanium dioxide (TiO₂) — a naturally occurring mineral compound classified as safe by the FDA, WHO, and EU regulatory bodies. Widely used in food coloring, sunscreen, and pharmaceuticals.

Contains zero harmful chemical solvents, chlorine compounds, or biocides beyond TiO₂ — meaning no ventilation period is required and spaces can be used immediately after application.

Safe for Children

No chemical residues, no off-gassing. Safe to use immediately after application is complete.

Safe for Pets

Titanium dioxide is non-toxic and non-irritating to animals. Pets don't need to be removed during or after application.

Environmentally Responsible

Pathogens are broken down into CO₂ and water. Zero secondary chemical waste is produced.

Chemical-Free & Odorless

Unlike ozone treatment or chemical fumigation, there is no residual smell and no safety risk to occupants.

The Science Behind Our Claims

Tested by an Independent Public Institution

How Nano Ark Eliminates Pathogens

Nano Bonding

Radical Generation

Pathogen Elimination

Self-Cleaning Cycle

Test 1: E. coli Antibacterial Efficacy

Test 2: Anti-Mold Efficacy — 3 Strains

Surviving Colony Count After Treatment

Nano Ark vs. Competitor —ATP Luminescence Test

In Practice — Hotel Application in Okinawa

100% Natural. No Compromise.

Ready to Protect Your Space?

The Science Behind
Our Claims

Nano Ark vs. Competitor —
ATP Luminescence Test