True HEPA Filtration (99.97% at 0.3 microns)

The PD-900P’s long-life True HEPA filter captures microscopic particles down to 0.3 microns — including dust, pollen, mold spores, bacteria, smoke, and viruses. Its deep-pleated surface holds more contaminants and actually becomes more efficient as it loads. This is the same filtration standard trusted in medical, clean-manufacturing, and aerospace environments, now delivering hospital-grade protection to your home or workspace.

Germicidal UV-C Lights (Non-Ozone Producing)

Two high-intensity UV-C germicidal lamps are positioned inside a reflective chamber to maximize sterilization power. As air passes through, UV-C energy inactivates bacteria, viruses, mold, fungi, and other harmful microorganisms. These are non-ozone-producing bulbs, ensuring safe operation while delivering real microbial reduction — a critical defense layer for households, clinics, dental offices, and environments with elevated pathogen risk.

Photo Catalytic Oxidation (PCO) Filter

The PD-900P uses a TiO₂-coated Photo Catalytic Oxidation substrate that activates under UV-C light, breaking down organic pollutants at the molecular level. Instead of merely trapping contaminants, PCO destroys VOCs, chemical fumes, odours, and biological compounds by converting them into harmless water vapor and CO₂. This advanced technology tackles the invisible threats traditional filters can’t neutralize on their own.

Carbon Prefilter

A high-capacity carbon prefilter serves as the first line of defense, capturing larger particles such as lint, hair, dust, and pet fur before they reach the HEPA stage. This not only improves the system’s airflow but dramatically extends the lifespan of the primary filter. It also absorbs light odours early in the purification process, helping maintain consistent performance year-round.

Carbon Potassium Permanganate Filter

Engineered for molecular-level filtration, this specialized carbon-potassium permanganate stage removes VOCs, formaldehyde, sulfur compounds, and a wide range of chemical gases. Through a process of chemisorption and oxidation, it neutralizes contaminants that contribute to headaches, irritation, fatigue, and long-term health issues. This final stage ensures the PD-900P delivers exceptionally clean, odour-free air even in challenging environments.