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FREE Shipping on all UK orders & 90 Day Returns
FREE Shipping on all UK orders & 90 Day Returns

Vent Axia Sentinel Kinetic F & FH Replacement Filters 2 Pack


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Filter Grades

Filters are the most important part of a home ventilation system. They determine the cleansing process and filter out the particles and dust particles. This way the unit can work at its best.

But which filter grade should you select?

Most of our filters can be purchased at different density grades. The higher the grade number, the higher the quality of the cloth, producing a better performance and filtering a greater amount of nasty things from the air.

We've created this handy table below to show how each filter grade performs in filtering different particles from the air.

MVHR filter grades guide table

Shipping and Returns


We offer free standard shipping on all UK orders because we know shipping costs are annoying.

If your order is in stock it will be shipped and delivered within 3-5 working days. We will of course email you to confirm when it’s on its way.

All UK deliveries are sent using Royal Mail or through a courier service. Most filters fit through your letter box, unless you order several, so there will often be no need to collect from your local post depot.

We also offer Express Shipping in case you need your filters sooner. Your order will be posted within 1 working day and delivered to you within 2 working days. Please note that Express Shipping is at an extra cost of £4.99.

Shipping costs in Europe (excluding UK) are £9.99.

Please note that if you are ordering more than 25 filter packs at a time, there may be a lead time of 1-2 weeks before your order is dispatched. We will of course let you know.


To be eligible for a refund or exchange, your filters must be unused and in the same condition that you received them. 

To complete your return click on the following link

Start return now

Returns must be sent within 90 days of receiving your order otherwise we will be unable to offer an exchange or refund.

We will send you an email to notify you when we have received your return. We inspect your return within 5 working days and will confirm whether we are able to offer an exchange or refund.

For refunds, credit will be applied to your original method of payment within 10 working days from authorisation of your refund.

Unfortunately, you will be responsible for paying the shipping costs involved in returning your filters, so it's important to make sure you have selected the correct filters before you complete your purchase. If you're not 100% sure which filters you need, we recommend you check the dimensions of your filters against the product description before placing your order. 

FilterMate package getting ready for delivery

    Why change your filters ?

    What are MVHR HRV systems?

    Airtight homes can become unhealthy places to live with stale air, foul smells, condensation and damp.

    A Mechanical Ventilation and Heat Recovery (MVHR) or Heat Recovery Ventilation (HRV) system is a ventilation system that removes polluted air in your home and replaces it with a supply of clean air. The system is usually located in your utility cupboard.

    New homes equipped with these systems have a healthy indoor environment, provided the air filters are maintained and replaced regularly.

    What are the benefits of MVHR HRV systems?

    Fresh Air - MVHR HRV systems regulate airflow throughout your home, supplying new air and extracting old air in a low energy solution. Ventilation is balanced so you always get a consistent amount of fresh air. It works effectively in both winter and summer depending on the outdoor air temperature.

    Energy Efficiency - MVHR HRV systems reduce the demand of heating a property by recovering heat that would otherwise be lost through traditional ventilation. They recover and reuse up to 95% of waste heat within the property and improve overall energy efficiency.

    Health Benefits - they provide continuous year round ventilation which reduces mould and condensation issues. They also help to alleviate allergies and asthma through fresh filtered air. 80% of asthma cases can be put down to poor indoor air quality and toxins in the air.

    Cleansing - they tackle unpleasant odours through fresh filtered air. Volatile organic compounds (VOCs) can be found in household products as well as building materials and furnishings, which can be detrimental to your health. MVHR HRV systems help to filter out these nasty compounds and keep the air in your home fresh.

    What are filters and why should I change them?

    All MVHR HRV systems contain disposable air filters, usually in pairs, which filter the airflow in and out of the system. These filters need to be cleaned and replaced regularly, typically every 6 to 12 months. See our FAQs section for more information on how to do this.

    If you don't clean and replace your filters regularly:

    • Your MVHR HRV system won't work properly and its amazing benefits won't be realised
    • You may get a build up of dust, fungi and bacteria in your home
    • Your system and home may become less energy efficient and you'll miss out on potential money savings
    • Your MVHR HRV system will become louder and make more noise as it works harder to regulate airflow through blocked filters
    • Ultimately your MVHR HRV system could fail, resulting in high servicing costs to get it fixed

    Check out our FAQs page for more information on MVHR systems and filters.

    If you have any questions, please don't hesitate to get in touch here. Our customer service team would love to help.

    In need of new MVHR filters? Check out our top Vent Axia filters: Sentinel Kinetic B Standard filters. And our top Naurie filter: Nuaire Eco2

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