Watch & learn

See it in action on YouTube.

We post regular product walkthroughs, how-to guides and filtration explainers. Subscribe to keep up with new filters and tips for getting the most from your system.

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2:48 What level of filtration do you need?
1:52 What do the levels of grading mean? 149 views 2:15 Nominal vs actual filter measurements 58 views 1:38 Does frame material affect filter performance? 158 views

More explainers

2:04 How to maintain your air filter 120 views 2:33 Molecular vs particulate filters explained 80 views 1:47 How energy efficient are your filters? 87 views

Help & support

Frequently asked questions.

Products & specification

What's the difference between ISO 16890 and EN 779?
EN 779 classified filters by average efficiency (G/M/F classes); ISO 16890 replaced it and rates filters by how well they capture particulate matter sizes, ePM1, ePM2.5 and ePM10, which maps more closely to real-world air quality. [Final wording to be confirmed.]
Can I order a custom or non-standard filter size?
Yes, we manufacture bespoke sizes to order with no minimum quantity. Use the Request a custom size form, or call us with your dimensions and spec. [Final wording to be confirmed.]
How do I find the right filter for my system?
Use the Filter Finder to search by size and class, or talk to our team for help speccing a replacement. [Final wording to be confirmed.]

Ordering & delivery

How do I open a trade account?
Apply for a trade/credit account to unlock tiered pricing. [Application route and approval terms to be confirmed by Jasun.]
What are your delivery times?
Stock items are dispatched quickly; made-to-order filters have a short lead time. [Same-day cut-off and lead times to be confirmed by Jasun.]
What's your returns policy?
See our Returns policy for full details on stock and bespoke items. [Final policy to be confirmed by Jasun.]

Can't find your answer?

Call 01278 452 277 Email our team

Dev notes

  • Videos are the real @jfilters channel. IDs, titles, thumbnails and view counts are live, pulled from the channel feed (youtube.com/feeds/videos.xml?user=jfilters). At the Magento build this becomes a cached YouTube Data API pull so "latest" stays current with no hand-editing, and it fills the featured video's view count (that video sits outside the 15-item feed window, so no count is shown here yet).
  • Durations are indicative. The RSS feed carries views but not length, so the duration pills are placeholders until the API pull supplies real lengths.
  • FAQ answers are placeholder wording (marked [to be confirmed]). Final copy from Jasun / Colin: ISO 16890 vs EN 779, trade-account application route, delivery cut-off + lead times, and the returns policy.
  • Contact fallback is wired to tel: / mailto: (01278 452 277 / sales@jfilters.com). Video cards open on YouTube in a new tab; an in-page lightbox player is a P2 option if Colin prefers.
  • Hi-fi Tailwind tech-port. This is the twin of knowledge-and-support.html; the lo-fi wireframe stays frozen. Remove this block before go-live.