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HRV filter replacement and system servicing

Asthma and allergies are real problems for many New Zealand families. And mould on your furniture and walls is not a good look!

That’s why it’s so important to reduce common airborne allergy triggers and mould spores from the air in our homes, and why HRV home ventilation systems have some of the best filters available.

Winter is peak season for dampness, so if your filter is overdue for replacement, now is a great time to do it.

Book a filter service now

Genuine HRV filter technology

Expert endorsed spacer Expert endorsed Our choice of filter technologies is one of the reasons HRV is endorsed for our home ventilation by Sensitive Choice and Allergy NZ. F8 filter spacer F8 filter The filter in our premium HRV system meets the F8 filtration standard and uses nanofibres thinner than a human hair to remove contaminants from the air. This nanofibre layer means our F8 filters operate at peak efficiency from day 1. Our F8 filters have a recommended service life of 24 months. F7 filter spacer F7 filter Our HRV Lite system features an F7 filter – a highly effective and more affordable filter system. Our F7 filters have a recommended service life of 12 months.

Our filter technologies compared

  Filter technology Filter performance Replacement interval
F8 filter Graduated density with added
nanofibre layer

Full performance from day one 24 months in normal use
F7 filter Graduated density Full performance achieved after
some time in service

12 months in normal use
  F8 filter F7 filter
Filter technology
Filter technology
Graduated density with added
nanofibre layer
Graduated density
Filter performance
Filter performance
Full performance from day one
Full performance achieved after
some time in service
Replacement interval
Replacement interval
24 months in normal use
12 months in normal use


WARNING: System performance is NOT guaranteed if you use a non-genuine filter and if your system is under warranty. Your warranty will be voided if a non-genuine filter is used.

How HRV air filtration works

Captures fine particles: put simply, our filters use microscopically small fibres to grab undesirable particles from the air before they can enter your home. Our filters are independently tested at an accredited laboratory in Europe to meet the strict F8 (premium HRV system) or F7 (HRV Lite) standards.

Electrostatic attraction for extra efficiency: in the same way that socks can stick together in your clothes dryer, we use filter fibres with an electrostatic charge. This means dust, pollen and other particles are physically drawn to the filter fibres.

Graduated density: look inside an HRV filter and you’ll see several filtration stages, getting finer and finer towards the outlet. The first layers remove larger particles, and the final layers remove the smallest. This improves energy efficiency, overall effectiveness of the filter and increases filter life.

Why your filter needs changing

All those airborne nasties we filter out have to go somewhere – and that somewhere is inside your HRV home ventilation system’s filter cartridge. Just like the filter in your vacuum cleaner or clothes dryer, it will become clogged over time and lose efficiency. That’s why to get the best performance from your HRV system, it’s important that we change your filter and service your system every two years (premium HRV system F8 filter) or every 12 months (HRV Lite F7 filter).

If your filter change light is flashing, give us a call on 0800 HRV 123!

Why your filter needs changing

Not just a filter change – what your HRV service visit covers

While the principle behind HRV home ventilation is simple, we’ve been evolving the technology in our systems constantly since we started in 2003. Your HRV home ventilation system is very reliable, but just like a modern car, it needs regular servicing to stay that way.

Changing your filter(s) is just one part of your HRV home ventilation service visit. Your technician will work through a 12-point checklist to make sure every part of your system from the fan unit in your roof space through to your outlet vents are in top condition.

The cost of a service visit depends on the size of your system, and we’ll always tell you up front when you make a booking how much it will cost.

An HRV home ventilation service call is also a good opportunity to ask any questions you have about your control panel and its settings – especially if you’ve moved into a home with an HRV system already installed.

And, of course, we’ll leave everything we touch cleaner than when we found it!

Not just a filter change – what your HRV service visit covers
HRV Filters need replacing? Let us do it for you | HRV New Zealand
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