Oxygen X-Air V400 filters

The model designation is usually printed on the front cover near the filter access panel – for example X-Air C200 or Easy V400E. We stock filter sets for Oxygen Easy and X-Air units in three size groups, each with its own filter size:

• C180/C180E, C200/C200E and C250
• V200/V200E
• V400/V400E, V500/V500E and V600

If the label is worn or missing, measure your existing filter (length, width, thickness) to confirm the right replacement.

For each Oxygen Easy and X-Air size we stock two sets:

• M5+M5 – the standard set for general dust protection
• M5+F7 – with a fine F7 (ePM1) supply filter for better protection against pollen and fine particles

Both sets fit the same filter cassette without any modifications – only the filter class changes, not the size.

Yes. The letter "E" in an Oxygen model name simply indicates a built-in electric heater for warming the incoming air – the unit's housing and filter compartment are identical in construction. That means the X-Air C200 and X-Air C200E use exactly the same size filters, and you can order them under either model name.

The same rule applies to the other pairs – C180/C180E, V200/V200E, V400/V400E and V500/V500E.

Yes – our equivalent filters match original Oxygen filters on all the parameters that matter:

• Manufactured in the EU
• Meet the same ISO 16890 filtration class standards (M5, F7)
• Cut to the same dimensional tolerances

Since filters need replacing several times a year, the price difference adds up noticeably over a year, while filtration quality and airflow throughput don't suffer – which makes equivalents a rational choice for routine maintenance, not a compromise.

Yes – we deliver Oxygen X-Air filters throughout Estonia via Omniva, SmartPost and DPD, including Saaremaa, Hiiumaa and the other islands. In-stock filters are dispatched within 1–2 business days; delivery times are counted in business days, and deliveries to the islands may take a day longer depending on the carrier's schedule. Delivery is free on orders from €100, so if your unit is in a summer house or far from a parcel locker, it's convenient to order two or three sets at once.

The recommended standard replacement interval is 3–6 months, but the exact timing depends on the environment – in the city or near a road, dust builds up faster than in a rural area. An F7 class filter, which captures finer particles, usually needs replacing a bit more often than an M5, since its fibre clogs faster.

In spring and summer, during pollen season, it's worth checking the filter every 4–6 weeks, especially if there are people with allergies in the household.