
Ventilation Systems for a Healthier Home
Ventilation Systems
At Optimum Environments, we specialise in designing and installing advanced heat recovery ventilation systems that keep your home or business warmer, drier, and healthier. Our systems are expertly designed to efficiently manage indoor air quality and moisture levels, ensuring comfort and health throughout the year.
Why do you need a ventilation system?
In Auckland's humid climate, proper ventilation is essential to prevent moisture build-up, which can lead to mold, dampness, and poor air quality. While opening windows might seem like a simple solution, it’s not always practical due to weather conditions, security concerns, and noise.
Mitsubishi Electric Lossnay Fresh Air Heat Recovery Ventilation
The Lossnay system is a balanced pressure solution that combines fresh air ventilation with advanced heat recovery. It draws in fresh air from outside while recovering heat energy from the outgoing stale, damp air, pre-warming or cooling the incoming air as needed.
Single-room and whole-home options
See and feel the difference with Wi-Fi Control
Combine with a ducted heat pump for a whole-home solution
Why do I need both heating and ventilation?
For a comfortable and healthy home, both heating and ventilation are essential. While heating controls temperature, it doesn’t ensure fresh air circulation. Our integrated solutions combine heating, cooling, and ventilation to keep your home both comfortable and well-ventilated.
Our Products
We proudly collaborate with leading industry brands like Mitsubishi Electric to ensure every installation is backed by reliability and performance.
Frequently Asked Questions
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The ideal system depends on your home’s size, location, and specific air quality needs. Our team can assess your space and recommend the most suitable solution.
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We recommend servicing your system annually to ensure it functions properly and efficiently.
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Yes, proper ventilation reduces moisture levels, helping to prevent mold growth.

Ready for a healthier home?
Get in touch with our team to find the ideal fresh air ventilation system for your home or office. We’ll help you design the perfect solution for your lifestyle and comfort needs.