Quick answer: This is the genuine ResMed hypoallergenic disposable filter for the S8 series CPAP/BiLevel machines — a finer-filtration version of the standard filter, designed to capture smaller particles (finer dust, pollen, and allergens) for people with allergies or asthma. It's a disposable filter, replaced about every 30 days (or sooner if soiled). It also fits S7-series and C-Series Tango machines. No prescription required.
What's included
- ResMed hypoallergenic disposable filter(s) — pack quantity as selected (e.g. 1 / 2 / 6 / 12 / 50)
About this part
The air filter is the first line of defense for both your therapy air and your machine. This hypoallergenic filter is the higher-filtration option:
- Finer filtration — captures smaller particles (fine dust, pollen, and other allergens) than the standard filter, for cleaner air if you're sensitive.
- Good for allergies/asthma — a better choice if you react to airborne allergens.
- Protects the machine — keeps debris out of the blower, helping the machine last.
- Disposable — replace about every 30 days, or sooner if it looks dirty or discolored (don't wash and reuse).
Standard vs hypoallergenic: the standard filter provides basic particle filtration; this hypoallergenic version offers finer filtration for allergy/asthma sufferers. Both fit the same machines — choose based on your needs.
Compatibility
Fits a wide range of older ResMed machines:
- All S8-series CPAP/BiLevel — S8 Compact, S8 Escape / Escape II, S8 Elite / Elite II, S8 AutoSet Vantage / AutoSet II, S8 VPAP S / ST / Auto / Auto 25
- All S7-series CPAP/BiLevel
- C-Series Tango
Note: this filter is for the S8/S7/Tango generation. The newer S9 and AirSense/AirCurve 10 & 11 machines use different filters — this one won't fit those.
Key features
- Genuine ResMed hypoallergenic disposable filter — for S8, S7, and C-Series Tango.
- Finer filtration — captures smaller particles than the standard filter.
- Good for allergies/asthma — cleaner air for sensitive users.
- Disposable — replace about every 30 days.
- Wide compatibility — all S8 and S7 series, plus Tango.
Specifications
| Specification | Detail |
| Product type | Hypoallergenic disposable air filter |
| Compatible machines | All ResMed S8 series, all S7 series, C-Series Tango |
| Not for | S9, AirSense/AirCurve 10 & 11 (different filters) |
| Type | Disposable; do not wash/reuse |
| Filtration | Hypoallergenic (finer than standard) |
| Replacement | About every 30 days, or sooner if soiled |
| Dimensions | ~1.75" × 1.25" × 0.75" |
| Pack sizes | Multi-pack (e.g. 1 / 2 / 6 / 12 / 50) |
| HCPCS | A7038 (disposable filter) |
| ResMed reference | 33975 / 33920 (pack SKUs vary) |
| Prescription | Not required |
| Brand | ResMed |
Frequently asked questions
Which machines does it fit? All ResMed S8-series, all S7-series, and C-Series Tango machines. It does not fit the S9 or AirSense/AirCurve 10 & 11.
How is it different from the standard filter? The hypoallergenic filter provides finer filtration — capturing smaller particles and allergens — which is better if you have allergies or asthma. The standard filter gives basic particle filtration.
How often should I replace it? About every 30 days, or sooner if it looks dirty or discolored.
Can I wash and reuse it? No — disposable filters should be replaced, not washed.
Do I need a prescription? No — filters do not require a prescription.
Can I get it delivered in Brooklyn or shipped nationwide? Yes — Task Supply Corp offers USPS shipping throughout the continental U.S., plus local pickup and delivery in Brooklyn and all five boroughs of New York City.
Replace the filter regularly per the machine's user guide to protect your therapy air and your device. Do not run the machine without a filter fitted.