Fan kits and grilles are essential components in modern ventilation systems, playing a critical role in maintaining healthy indoor air quality across homes and commercial buildings. Whether installed in bathrooms, kitchens, utility areas, or office spaces, these products are designed to enhance air circulation, reduce moisture buildup, and prevent mould growth—contributing to a safer and more comfortable indoor environment.

Why does the quality of the ventilation system matter?

High-quality fan kits not only offer superior performance but also ensure long-term reliability and compliance with New Zealand’s Building Code. Products manufactured to meet the standards of AS/NZS 60335.2.80, which outlines safety requirements for electric fans in domestic and commercial environments, and NZS 4303:1990, which provides guidelines on indoor air quality, are essential for achieving safe and effective ventilation. 

Complementing grilles, available in a range of finishes and styles, offer practical airflow solutions without compromising on aesthetics—an important consideration in both residential and commercial environments.

Are there any installation and maintenance requirements?

Correct installation is critical to the performance of fan systems. Installers must follow the guidance provided in AS/NZS 1668.1 and 1668.2, which detail how ventilation and air conditioning systems should be designed and installed to meet health and safety standards, especially in commercial applications. 

Routine maintenance is just as important. Fan kits and grilles should be cleaned and inspected regularly to prevent blockages, ensure optimal airflow, and maintain compliance. For commercial buildings, this may also be necessary to meet the ongoing requirements of Clause G4 of the New Zealand Building Code, which outlines minimum performance criteria for ventilation systems. 

What are the relevant standards and regulations for ventilation systems?

• AS/NZS 60335.2.80 – Household and similar electrical appliances – Safety – Particular requirements for fans: This standard covers the safety requirements for electric fans used in residential and commercial settings. 
• NZS 4303:1990 – Ventilation for acceptable indoor air quality: Provides guidelines on ventilation rates and system performance for maintaining indoor air quality in buildings.
• AS/NZS 1668.1 & 1668.2 – The use of ventilation and air conditioning in buildings: These standards specify how ventilation systems should be designed and installed to meet health and safety requirements, especially in commercial applications.
• Building Code Clause G4 – Ventilation: Part of the New Zealand Building Code, this clause sets minimum performance criteria for mechanical ventilation systems in both residential and commercial buildings.

What are the benefits of ventilation systems in residential and commercial settings?

Investing in compliant, high-quality fan kits and grilles provides a range of benefits:

• Improved indoor air quality: Helps reduce indoor pollutants, allergens, and moisture, promoting better health outcomes (NZS 4303:1990).
• Regulatory compliance: Meeting standards such as AS/NZS 60335.2.80 and the New Zealand Building Code Clause G4 ensures systems are legally compliant and safe.
• Energy efficiency: Many modern systems are designed to optimise performance while minimising power consumption.
• Condensation and mould Control: Particularly important in New Zealand’s damp climate, proper ventilation reduces risks of mould growth and structural damage.

Whether for a new build or a renovation, choosing fan kits and grilles that meet New Zealand’s standards is a smart investment. These products not only help ensure compliance but also contribute to long-term energy efficiency, health, and comfort. Builders, electricians, and homeowners are encouraged to select quality systems and follow proper installation and maintenance procedures to get the best performance from their ventilation systems.

Learn more about Vynco’s range of fan kits and grilles by clicking here.

This article is intended for general informational purposes only and does not constitute professional advice.

by Sean Aucamp, 9 July 2025

Sources:

MBIE. (2022). New Zealand Building Code Clause G4 – Ventilation. Retrieved from https://www.building.govt.nz/building-code-compliance/g-services-and-facilities/g4-ventilation/

Standards New Zealand. (n.d.). AS/NZS 60335.2.80 – Safety of household and similar electrical appliances – Particular requirements for fans.

Standards New Zealand. (n.d.). NZS 4303:1990 – Ventilation for acceptable indoor air quality.

Standards New Zealand. (n.d.). AS/NZS 1668.1 & 1668.2 – The use of ventilation and air conditioning in buildings.