Three-quarter view of photocatalytic oxidation filter with blue UV-A lamps

Air Filters and Chemical Filtration

Photocatalytic Oxidation Filter Module

A UV-A illuminated titanium-dioxide catalyst module that oxidizes selected low-concentration organic vapours and odours in recirculating air.

TiO2 Catalyst Surface
UV-A Activation
Low-Level VOC Treatment
Serviceable Lamp Module

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Product Introduction

The photocatalytic oxidation module combines UV-A lamps with a high-area honeycomb or mesh substrate coated in titanium dioxide. When illuminated, the catalyst generates reactive surface species that oxidize compatible organic molecules passing through the module. The rigid metal cassette protects the catalyst, maintains lamp spacing and slides into a dedicated air-treatment housing. Particle prefiltration keeps dust from shading the catalytic surface, while downstream adsorption can capture residual intermediates in demanding applications.

Key Features

UV-A lamps activate a fixed titanium-dioxide coating without consuming a loose granular media bed.

Open honeycomb geometry exposes catalyst area while maintaining moderate pressure loss.

Removable lamp and catalyst sections can be serviced separately.

A metal safety screen shields the illuminated elements from accidental contact.

Customer Product Concerns

PCO performance depends on light intensity, catalyst cleanliness and contaminant residence time rather than filter thickness alone.

Dust coats the catalyst and blocks UV light from the active surface.An upstream fine filter protects the catalyst and extends the cleaning interval.

Air crosses the module too quickly for meaningful oxidation.Catalyst depth, lamp power and face velocity are matched to the intended contaminant load.

Lamp output declines while the system still appears operational.Accessible lamp racks and operating-hour monitoring support scheduled replacement.

Partial oxidation creates intermediate compounds downstream.A polishing carbon stage can adsorb residual vapours after the photocatalytic section.

Typical Applications

Laboratory recirculation unitsHealthcare odour reductionOffice and control-room air cleanersFood process support areasLow-concentration VOC polishing

Technical Parameters

Typical construction ranges for a duct-mounted photocatalytic oxidation module are shown below.

Core Material	Titanium-dioxide-coated aluminum honeycomb with UV-A lamp array
Panel Thickness	100–250 mm catalyst and lamp module depth
Effective Width	300–610 mm nominal module width
Maximum Length	Up to 1220 mm module height or lamp length
Steel Facing Thickness	0.8–1.2 mm stainless or powder-coated steel cassette
Core Density	30–80 kg/m³ apparent density of the coated open-cell catalyst
Thermal Conductivity	120–200 W/(m·K) for the aluminum catalyst substrate
Surface Finish	White powder-coated frame with bonded titanium-dioxide catalyst coating
Joint Type	Slide-in metal cassette with keyed lamp connector and gasketed housing flange
Customization	Available based on the intended application and operating environment.

Available Options

Honeycomb or expanded-mesh catalystSingle or multiple UV-A lampsUpstream particle prefilterDownstream activated-carbon polishing stage

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