About our Custom Air Filter Solutions
We offer bespoke air filtration solutions such as our wireframe filters. Each frame can be constructed to any size up to 1.8m on the longest side and include special features such as hinges, hooks, pull tabs or v/w bends.
Our Reticulated Polyester Foam can be formed into cylinders, cones and other shapes, with open front steel wire mesh stiffeners if required, as well as custom-sized pads.
We also offer custom sizes of our panel, bag and HEPA filters.

Custom Size Air Filters Built To Your Specification
Custom filters are air filters that are specifically designed to fit your air system.
If you have a bespoke requirement when it comes to your air filters, then get in touch with us as we are able to design and build custom air filters to your exact specification.


Custom Air Filter Testimonials
Take a look at what our recent customers have said about their experience buying air filters from us. Testimonials coming soon...
Brilliant service
“Excellent service. I was easily able to find the right filters by typing my unit into the search function. The filters arrived very quickly.”
– Mrs Stuart
Excellent service all round!
“I didn’t really know what I wanted or how to fit it but I e-mailed and got a reply really quickly with all the information. Very, very friendly…excellent service…TOTALLY recommend. Thank you, fitted, really easy and really fast delivery.”
– Mrs Julie Williams
Great prices
“Great prices, around 30% or more cheaper than elsewhere. Quick delivery, thank you. Filter quality, looks as good as OEM. I know you can’t tell how good a filter actually filters by just looking at it but if it looks right then it probably is!!”
– Alan Hutton
Excellent service
“I found this company on Amazon and ordered filters for my Sentinel Kinetic MVHR unit but wasn’t sure of which type it was. I got the wrong one. I contacted them via Amazon and they responded quickly and sorted me out. Meanwhile I had gone directly to their website to order the correct size which was made really easy by them having the dimensions of the different filters clearly stated.”
– Sandy
It was an absolute pleasure dealing with FD
“It was an absolute pleasure dealing with James and Filters Direct. Having ordered the wrong filters for our unit James couldn’t have been more helpful and efficient. Many thanks again.”
– Alasdair
Quick delivery and good quality…
Quick delivery and good quality filters. Ordered these after the OEM ones became soiled which was causing the vent system to be overworked. I’ve had no issues since installing these and any whirring noises have all disappeared.
– Raj
Very prompt dispatch & delivery
“Very prompt dispatch & delivery. Appears good quality filter that fitted PIV very well.”
– Ron Powell

Custom Air Filters Case Studies
Take a look at how we've helped design and build custom air filters for these businesses below.
Streamlined Folding Filter Solution Simplifies Cubed Exhaust Frame Filtration
Posted in: Case Studies
Read more about Streamlined Folding Filter Solution Simplifies Cubed Exhaust Frame Filtration>Innovative Custom Air Filter Solution Reduces Costs for Metal Frame Filter Users
Posted in: Case Studies
Read more about Innovative Custom Air Filter Solution Reduces Costs for Metal Frame Filter Users>
Custom Air Filters FAQs
Here are answers to some of the most common questions we get asked about custom air filters..
What are custom air filters?
Custom air filters are filters that are specifically designed and manufactured to fit unique or non-standard sizes and configurations. They are tailored to meet the specific requirements of an HVAC system or other air filtration applications.
Why would I need custom air filters?
You might need custom air filters if your HVAC system or air filtration equipment has non-standard dimensions or if you have unique air quality requirements. Custom air filters ensure a proper fit, optimal filtration efficiency, and improved air quality by addressing specific filtration needs.
How do I determine the right custom size filters for my application?
To determine the right custom size filters, you should measure the exact dimensions of your existing filter or the filter housing. Measure the length, width, and depth of the filter, and ensure accuracy. Then get in touch with us and we can assist you in selecting the appropriate custom size filters.
Can custom air filters provide better filtration than standard filters?
Yes, custom air filters can provide better filtration than standard filters. Since they are tailored to fit precisely, they minimise gaps and bypassing, ensuring that air is effectively filtered before entering the system. Custom air filters can be designed with specific filtration media, such as HEPA or activated carbon, to address specific air quality concerns.