**Addressing formaldehyde is a common concern, as traces of it are often found in newly renovated homes, warehouses, offices, as well as newly built schools, shopping malls, hospitals, and other public spaces. These residues pose significant health risks, creating a pressing need for an air purifier that can genuinely eliminate formaldehyde. Traditional purification technologies struggle with this challenge: activated carbon adsorption becomes saturated and requires frequent replacement; photocatalysis demands high-intensity ultraviolet light, consumes more energy, and may produce ozone; while standard filtration is entirely ineffective against gaseous pollutants.**
Today, nairteng introduces a technology that redefines industry standards-an intelligent air purification system based on the Triboelectric Nanogenerator (TENG). Our innovation is not merely an improvement on existing technologies but a fundamental breakthrough in principle.
**Phase 1: Self-Generating Energy-From Airflow to Clean Electricity**
Imagine the fresh air after a thunderstorm-a natural demonstration of electrostatic purification. nairteng has engineered and refined this natural phenomenon.
When polluted air enters the core of our purification system-a three-dimensional matrix filled with patented wavy nanofibers-a remarkable transformation begins. Nanofibers of different materials continuously rub against each other under airflow, acting like perpetual micro-generators that directly convert mechanical energy from airflow into electrical energy. This process operates independently of external power sources, forming a highly efficient self-sustaining energy harvesting system.
The result: An electrostatic field of up to thousands of volts is generated inside the purifier, while power consumption is reduced by over 65% compared to traditional technologies.
**Phase 2: Precise Separation-Differential Treatment for Particulates and Formaldehyde**
The electrified purification field acts as an intelligent pollutant sorter:
- **Particulate pollutants** (PM2.5, bacteria, pollen) are instantly charged and strongly adsorbed onto the fiber surfaces.
- **Formaldehyde molecules** continue forward into a specially designed "molecular conversion zone."
Unlike traditional filtration, our electrostatic adsorption achieves a capture efficiency of 99.99% for particles as small as 0.3 microns while maintaining extremely low airflow resistance, ensuring quiet and efficient operation.
**Phase 3: Catalytic Activation-An Electricity-Driven Molecular Reactor**
This is the core breakthrough of NanoClear technology. The surfaces of our nanofibers are coated with specially formulated composite metal oxide catalysts. While traditional catalysts require high temperatures or intense light for activation, our innovation lies in:
The continuous microcurrents and electric fields generated by friction provide a constant "awakening energy" for the catalysts, enabling them to achieve ultra-high activity at room temperature. Simultaneously, micro-discharge effects convert oxygen and moisture in the air into reactive oxygen species such as hydroxyl radicals, forming a powerful oxidation network.
**Phase 4: Complete Decomposition-From Toxic Gas to Harmless Substances**
Formaldehyde molecules entering this highly reactive environment undergo thorough molecular-level transformation:
1. **Rapid adsorption** onto the active sites of the catalyst.
2. **Weakening of chemical bonds**, leading to decomposition under the influence of the electric field.
3. **Complete oxidation** through reactions with reactive oxygen species.
4. **Final mineralization** into carbon dioxide and water vapor.
This entire process achieves permanent elimination of formaldehyde, rather than temporary storage.
**Complete Self-Sustaining Purification Cycle**
The Four-Step Coherent Process for Formaldehyde Removal:
1. **Airflow Delivery and Pre-Concentration**
• The fan pushes formaldehyde-laden air into the filter core. Formaldehyde molecules (polar molecules) are rapidly adsorbed onto the surface of nanomaterials and the inner walls of microchannels under the force of the electrostatic field, breaking the gas-solid adsorption equilibrium and achieving efficient concentration of formaldehyde, creating high-concentration contact conditions for subsequent decomposition.
2. **Electrostatic Field-Enhanced Adsorption**
• The polarity of formaldehyde molecules causes them to move directionally in the electric field and become firmly fixed near catalytic active sites. The electric field also alters the electron distribution on the material surface, increasing adsorption capacity and rate. Compared to conditions without an electric field, adsorption efficiency is significantly improved.
3. **Catalytic Decomposition (Core Step)**
• The filter core surface is coated with photocatalytic or composite catalytic components (such as TiO₂-based or manganese oxides). Under the synergistic effect of the electric field, catalytic activity is significantly enhanced:
The electric field accelerates electron-hole separation in the catalytic reaction, suppresses recombination, and improves the generation efficiency of free radicals (·OH, ·O₂⁻).
Formaldehyde molecules are gradually oxidized under the action of free radicals and ultimately decomposed into CO₂ and H₂O, achieving harmless conversion.
**Synergistic Effect**: Experiments show that the triboelectric electrostatic field can approximately double formaldehyde degradation efficiency compared to catalysis alone, with degradation rates increasing as the frequency of the electric field rises.
4. **Product Emission and Filter Regeneration**
Decomposition products (CO₂ and H₂O) are expelled with the purified airflow. Particulates and incompletely decomposed by-products adsorbed on the filter can be removed via rinsing with water or wiping, restoring adsorption and catalytic activity. This enables long-term use without consumables (lifespan of up to 8–10 years).
The nairteng Formaldehyde-Removing Air Purifier achieves efficient, safe, and long-lasting formaldehyde removal through the process of "Friction-Induced Electricity → Electrostatic Concentration → Electric Field-Enhanced Catalysis → Harmless Emission → Filter Regeneration." It combines purification efficiency with economic usability, making it suitable for various scenarios such as households, offices, and medical facilities.
