Flow Hood Australia | Air Balancing Hoods for HVAC Systems
Measure air volume at diffusers and grilles with confidence using professional air balancing hoods and flow hoods from Testo and TSI. This range is built for TAB contractors, commissioning agents, and HVAC technicians who need fast, accurate readings for commercial buildings, healthcare, education, and high-end residential projects across Australia.
Making your home or building comfortable depends on getting the heating, ventilation, and air conditioning (HVAC) just right. Our Air Balancing Hoods help ensure even airflow throughout the space, eliminating hot or cold spots.
An air balancing hood – sometimes called an air capture hood or flow hood – sits over a supply or return grille to directly measure the volume of air in litres per second (L/s) or cubic metres per hour (m³/h). Instead of guessing from velocity readings alone, you see the actual airflow being delivered into the space.
Designed for precision, our laminar flow hood options provide accurate airflow measurements, helping you optimize system performance. Featuring HEPA filter compatibility, they effectively capture airborne particles for improved indoor air quality. With a well-calibrated filter face, our hoods maintain consistent readings, ensuring an efficient vertical laminar airflow distribution.
TSI’s AccuBalance hood systems are a TAB industry benchmark, designed to take direct air volume readings at diffusers and grilles. Our TSI range includes:
The Testo 420 is a lightweight, battery-powered flow hood with interchangeable hood sizes, ideal for sites where you’re moving between diffusers all day. We stock:
Air balancing hoods are most effective when used with other test instruments. Many technicians also pair them with humidity and temperature meters, differential pressure meters, and Bluetooth smart tools.
When your HVAC system is balanced, it not only feels better, but it also uses less energy. This means you'll save money on energy bills while eliminating uneven temperatures.
At HVAC Shop, we care about providing top-quality solutions. Our products show our dedication to long-lasting accuracy and allow you to achieve HVAC perfection.
If you're not sure how to use an Air Balancing Hood, our team of experts is ready to help. We know you need your tools quickly, so we offer fast and reliable delivery across Australia.
Not sure which hood or kit is right for the job? Use this quick guide:
A vane anemometer measures velocity at a single point, requiring calculation. An air balancing hood captures the full flow and reports volume directly, which is faster and more repeatable.
Ideally, yes. Matching the hood footprint to the diffuser size helps minimize leakage and uncertainty. That’s why we offer multiple hood sizes and frame kits.
Most hoods are designed for single-person operation, especially when used with telescopic stands. However, safety requirements may dictate a two-person team for specific sites.
Yes. While common in commercial TAB, they are excellent for diagnosing residential ducted systems and confirming supply volumes to specific rooms.
Author: HVAC Shop Content Team
Business details: HVAC Shop • ABN 98 351 143 900
Methodology: Based on product datasheets for Testo 420/TSI AccuBalance and Australian government guidance (energy.gov.au).