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Brooke Air Technical FAQs

Product Application & Selection

Q1. How do I select the correct grille or diffuser for a specific application?

Selection depends on the required airflow rate, throw, spread, noise level, and mounting position. Brooke Air provides detailed performance data on each datasheet to support accurate product selection. Our engineers can also perform selection calculations based on air volumes and room geometry.

Q2. What’s the difference between a grille and a diffuser?

A grille primarily directs airflow — supply or extract — through fixed or adjustable blades. A diffuser distributes air more evenly, promoting mixing and comfort across the occupied zone.

Q3. How can I prevent draughts and maintain occupant comfort?

Ensure the terminal velocity and air temperature differential (Δt) are correctly balanced. Air velocity at occupant level should typically remain below 0.25 m/s in comfort applications. Proper diffuser placement and selection are key to achieving this.

Compatibility & Integration

Q4. Are Brooke Air products compatible with VAV systems?

Yes. Many diffusers and grilles are tested for stable airflow under varying volume conditions. Data for VAV performance and turndown ratios are available on request.

Q5. Can grilles and diffusers be supplied with plenum boxes?

Yes. Brooke Air offers matching plenums in galvanised, aluminium, or stainless steel, with optional air volume control dampers and acoustic lining for enhanced performance.

Q6. Are your products suitable for healthcare or cleanroom environments?

Absolutely. We manufacture stainless steel and aluminium terminals with smooth, non-porous finishes that resist microbial growth and are suitable for hygienic applications such as hospitals and laboratories.

Finishes & Materials

Q7. What finishes are available?

Standard options include polyester powder coating (any RAL colour), anodised aluminium, and natural or brushed stainless steel. Specialist finishes — such as antimicrobial coatings, brass plating, or custom colour matching — are available on request.

Q8. Are powder coatings suitable for external or humid environments?

Yes. We use marine-grade and UV-stable polyester powders with chromate or zinc phosphate pre-treatment, suitable for outdoor or high-humidity applications.

Performance & Testing

Q9. How is airflow performance tested?

All performance data is derived from tests in accordance with BS EN 12238 and BS EN 13182, ensuring accuracy in air diffusion and sound power measurement.

Q10. Can you provide acoustic data?

Yes. Each product includes sound power levels (Lw) and NC/NR ratings. Acoustic performance can be verified against specific project noise criteria when required.

Installation & Maintenance

Q11. What installation guidance is available?

Our Installation Guides detail correct fixing, alignment, and integration with ductwork and ceiling systems. Following these ensures designed airflow patterns and prevents air leakage.

Q12. How should products be maintained?

Regular cleaning of blades and cores helps maintain performance. Many models feature removable or hinged cores for easier cleaning and maintenance access.

Sustainability & Compliance

Q13. Do Brooke Air products contribute to BREEAM or LEED credits?

Yes. The use of recyclable materials, UK-based manufacturing, and sustainable processes supports BREEAM and LEED compliance in areas such as materials and responsible sourcing.

Q14. What certifications support Brooke Air’s quality assurance?

We operate under an ISO 9001-accredited quality management system, ensuring full traceability, consistent quality, and adherence to environmental and material compliance standards.

Bespoke & Project-Specific Enquiries

Q15. Can Brooke Air manufacture bespoke or non-standard designs?

Yes. We specialise in custom fabrication, including curved, angled, and shaped grilles and diffusers. Our engineering team works directly with designers and contractors to achieve precise aesthetic and performance goals.

Q16. Can you assist with site coordination and delivery planning?

Yes. We provide phased delivery options, room-by-room labelling, and technical support to ensure efficient site coordination and smooth installation sequencing.

CPD’s & Specification Support

At Brooke Air, we believe that knowledge sharing is central to progress in building services design.

How can we help you?

General Enquiry

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