How does the SG-BPI series reduce HVAC energy costs?

The SG-BPI series supports ASHRAE 62.1 IAQP, allowing buildings to safely reduce outdoor air intake while maintaining superior IAQ. Additionally, the system creates zero pressure drop, meaning HVAC fans do not need to work harder as they would with high-MERV filters.

Can this system prevent mould growth on AC cooling coils?

Yes. When installed upstream, the bipolar ions deactivate mould spores and biofilms directly on the cooling coils and drain pans. This eliminates 'Dirty Sock Syndrome' and reduces the need for frequent chemical coil cleanings.

Does the SG-BPI series integrate with Building Management Systems (BMS)?

Absolutely. The units feature dry-contact outputs for seamless BMS integration, allowing facility managers to monitor system status, airflow switch activation, and tube health in real-time.

Why are Glass DBD tubes superior to composite needle-point ionisers?

PurAire uses medical-grade Glass DBD (Dielectric Barrier Discharge) tubes which are resistant to heat and charring. Unlike composite or needle-point systems that can produce ozone over time, our glass tubes are UL2998 certified for Zero Ozone and maintain consistent output for 17,000+ hours.

PurAire In-Duct Bipolar Ionisers | HVAC Models for Odour & Mould Removal – Singapore - PurAire Singapore: Bipolar Ionisers for Odour Removal, Mould Elimination & Indoor Air Purification

PurAire’s SG-BPI Series offers professional-grade UL867 and UL2998 Certified Zero Ozone Emissions, Cold Plasma Bipolar Ionisation engineered specifically for Singapore’s high-humidity HVAC environments.

Designed for seamless integration into Air Handling Units (AHU) and Fan Coil Units (FCU), these fixed units proactively neutralise mould, mildew, food and body odours, urine smells, cigarette, cigar odours and tobacco smoke, and VOCs at the molecular level. Unlike passive HEPA filters, our Glass DBD technology saturates the entire airflow with positive and negative ions, ensuring every cubic metre of your facility stays 'Swiss Mountain-Top Fresh' without ozone or chemical additives

PurAire’s In-Duct Bipolar Ionisation units (Models SG-BPI-1 to SG-BPI-12) are designed for continuous, whole-building air purification. Engineered for Singapore's humid climate, these systems neutralise mould, mildew, viruses, and VOCs directly within the AHU (Air Handling Unit) or FCU (Fan Coil Unit).

Our SG-BPI series supports ASHRAE 62.1 Indoor Air Quality Procedures (IAQP), allowing facilities to reduce outdoor air intake while maintaining superior air quality. This leads to a 20-40% reduction in HVAC energy consumption—a critical factor for Green Mark certified buildings in APAC.

Now with built-in airflow switches at no extra cost for energy savings, BMS connectivity, minimal maintenance and long tube life (up to 17,000 hours), plus UL2998 aqnd UL867 Certified for Zero Ozone Emissions - safe for continuous occupancy in hotels, hospitals and offices.

Model Series	Treatment Area (SqM)	Primary Application	Installation Point
SG-BPI-1 / 2	Up to 100 SqM	FCU / Small Ducts	Supply Air / Fan Coil
SG-BPI-3 / 4	Up to 500 SqM	Medium AHU / RTU	Main Supply Duct
SG-BPI-5 / 6	Up to 1,000 SqM	Large AHU / Hospitals	Cooling Coil / Plenum
SG-BPI-12+	Up to 2,500 SqM+	Industrial / Airports	Custom Manifold In-Duct
Standard Features: UL2998 Zero Ozone certified, Integrated Airflow Switch, BMS Connectivity, Medical-Grade Glass DBD Tubes.

Feature	Technical Specification / Detail
Safety Certifications	UL2998 (Zero Ozone Guaranteed), UL867, CE, RoHS
Ionization Technology	High-Output Glass DBD (Dielectric Barrier Discharge)
Operational Tube Life	Up to 17,000 Hours
Energy Savings	Built-in Airflow Switch included as standard
Integration	BMS (Building Management System) Compatible
Coverage Range	Models available for 40 SqM to 10,000+ SqM
Maintenance	Filterless technology; Zero replacement filters required

Benefits: Operational ROI, Energy Savings, BMS Integration, and Mould Prevention:

Pathogens: >99% deactivation of Viruses (COVID-19/Flu) and Bacteria.
Microbials: Permanent elimination of Mould, Mildew, and Fungal spores.
Chemicals: Molecular breakdown of VOCs (Formaldehyde, Benzene, Paint fumes).
Odours: Total destruction of Tobacco smoke, Urine, Kitchen grease, and Renovation smells.
Safe: Our Glass DBD Tubes will not burn, or smoulder like the "name brand composite" tubes
PM2.5 Reduction: Agglomerates particles for easier capture/settling.
Energy Savings: Built-in airflow switches (free upgrade).
Sustainability: Green, low-maintenance, UL2998 , UL867, CE zero-ozone certified.
Simple and easy installation into your existing ducts or FCU's with no retrofitting

Ideal Applications in Singapore:

Hotels (lobbies/guest rooms, meeting rooms, toilets, restaurants, Spa's and F&B),
Casinos (VIP areas, smoking areas, gaming spaces) , large halls, ballrooms
Offices and Co-Working facilities)
Bin Centres and Grease trap rooms
Restaurants and F&B Outlets
Buses, Trains, MRT, Private Hire Vehicles
Toilets and Changing areas
Hospitals and Clinics (patient intake areas, waiting rooms, treatment rooms, wards)

Working invisibly 24/7, the powerful Bipolar Oxygen Ions will saturate
any indoor space (from 40 SqM to 10,000 Sqm). Here's how it works:

The ions quickly bond with Germs, Bacteria, and Viruses (including Covid-19 and Flu), PM2.5 particles, Mould, Mildew, Odours (Cigarette and Tobacco smells, Perfume, Body odours, Food, Renovation Odours), and VOC's (including formaldehyde), deactivating or destroying them on contact.

Unlike needle-point ionizers or composite tubes used by competitors, PurAire’s medical-grade Glass DBD (Dielectric Barrier Discharge) tubes are non-combustible and provide a consistent, high-density ion output that does not degrade over time.

## Sustainable Air Quality with Zero Filter Costs and No Consumables

Facility managers in Singapore choose the SG-BPI series for its low Total Cost of Ownership (TCO). Featuring 17,000-hour Glass DBD tubes and built-in airflow switches as standard, PurAire units only operate when the HVAC system is active. This prevents unnecessary energy draw and extends tube life, providing a 'set-and-forget' solution for hospitals, hotels, and casinos looking to improve IAQ while hitting sustainability targets

Frequently Asked Questions about our In-Duct Installation Models:

What models are available in the PurAire In-Duct range?

Our comprehensive SG BPI series ranges from the compact Mini 4V (covering up to 40 SqM) to the industrial-strength SG BPI-12, which is capable of purifying large spaces up to 2,500 SqM. Models are available in both vertical and horizontal tube configurations to fit any HVAC, FCU, or AHU setup.

Why are PurAire’s Glass DBD tubes safer than other ionisers?

Unlike "name brand" MultiCore composite DBD tubes that have had previous issues with smouldering or charring under stress, PurAire uses Medical-Grade Glass DBD Technology. These are inherently resistant to scorching, provide more stable ion output over 17,000 hours, and are UL2998 certified for zero ozone production.
Unlike 'needle-point' or 'composite multicore' ionisers that can potentially char or smoulder over time, PurAire uses High-Output Glass DBD tubes. These are heat-resistant, produce Zero Ozone (UL2998), and maintain a consistent ion density for over 17,000 hours.

How does in-duct ionization reduce AC maintenance costs?

By neutralizing mold spores and biofilms at the source, our bipolar ionizers keep cooling coils and drain pans cleaner for longer, reducing the frequency of chemical coil cleanings and preventing "dirty sock syndrome." By installing ionisation upstream of the cooling coils, the SG-BPI series deactivates biofilms and mould spores on the coil fins. This prevents 'Dirty Sock Syndrome' and significantly reduces the frequency of chemical coil cleanings

Does this system cover the entire building?

Yes. By installing the ionizer within the central HVAC system, the ions are carried by the airflow to every room served by that AC unit, providing "whole-house" or "whole-office" purification.

What are the benefits of the built-in airflow switch? How does it save on costs?

All new PurAire in-duct models now include an Integrated Airflow switch and BMS Connectivity at no extra cost. This ensures the ioniser only operates when the fan is running, significantly saving energy and extending the lifespan of the Glass DBD ion tubes up to 17,000 hours.

Are these units safe for use in hotels, hospitals and casinos?

Absolutely. PurAire systems are UL867 and UL2998 certified for Zero Ozone production. They are ideal for high-traffic environments like hotels , guest rooms, restaurants, casinos and hospitals where continuous, safe air disinfection and odour removal are required.

How do I fix smells in my central AC?"

Our SG-BPI Series is engineered for seamless integration into existing FCU (Fan Coil Units) and AHU (Air Handling Units). Featuring built-in airflow switches and a 17,000-hour tube life, PurAire provides a sustainable, filterless solution to sanitise aircon ducts and prevent musty smells across large-scale commercial properties in Singapore.

Zero Pressure Drop with PurAire In-Duct Units?

Unlike HEPA filters, the SG-BPI series provides building-wide purification without increasing the load on your HVAC fans, saving on motor wear and energy.

ASHRAE 62.1 Compliance?

Our technology supports the IAQP (Indoor Air Quality Procedure), allowing for reduced outdoor air intake and significant energy savings in tropical climates like Singapore.

Mould Deactivation on Coils?

By installing upstream of the cooling coils, the ions prevent biofilm and mould growth on the fins, eliminating "Dirty Sock Syndrome" and reducing chemical cleaning frequency.

No Consumables?

Correct - there are NO consumables. There are no filters to buy, stock, or dispose of. The high-output Glass DBD tubes have an operational life of 17,000+ hours.