Domestic Filters

aftermarket FILTERS
Airflow – The HVAC Shop is your one stop shop for ventilation filters.

We stock or manufacture a large range of different heat recovery and home ventilation filters manufactured at different grades from the standard G4 to the high quality F7 Filter. If your filters are not shown here, contact us and we can normally source them.

We supply aftermarket and original DIY filter replacements packs for forced air ventilation systems such as: DVS, Moisture Master and HRV.

We sell the genuine filters for the Smart Vent and Weiss systems.

For those wondering about servicing of HRV/DVS units –

New Zealand HRV units require either; the Generation 1 F7 Box type filter, if your box is a metal box (if you have a twin fan model HRV, you will require 2 x filters - one for each fan), or a Generation 2 F8 Box type filter if you have a plastic box

Whilst HRV distributors prefer to maintain your HRV unit, you DO have the option of replacing the filter/s yourself (which will take around 15mins - very simple to do).

DVS units are also simple to maintain and require a F7 Standard bag filter or a Carbon Filter which fit all DVS system fans and the large inline filter tube. The F7 Won’t fit the small inline filter tube you need a small inline G4 Filter

Moisture Master has a simple practical filter cassette design makes it very easy for you to replace the filters.
If you're not afraid of some basic DIY and have access to some duct tape, we sure you'll be surprised how easy they are to replace.

Most ventilation manufacturers recommend that filters be changed at least once a year, but this is subject to where you live and the conditions of air quality around your home. If you live in a town or city or beside a busy road, air pollution tends to be greater so your ventilation filters will need to be changed more often.

Best practice is to check and clean your ventilation filters every 3-6 months. In city areas they should be changed every 6-9 months. Make sure you always use a correctly-sized filter positioned with the airflow arrow pointing in the right direction.

A good filter maintenance schedule protects your family’s health and your heating and cooling equipment.