20 Pack CPAP Filters for ResMed AirSense 11 Review

Quick Verdict

If you own a ResMed AirSense 11 and want a no-fuss way to stay on top of filter changes, the 20-pack CPAP filters for AirSense 11 from Bay State Importers gets the job done without drama. They're affordable per unit, fit exactly as they should, and give you a year's worth of supply in a single order. The only catch: they won't work if you own an AirSense 10, so check your machine model before buying. Score: 4.3/5

What Is the Bay State Importers AirSense 11 Filter Pack?

It arrived in a flat padded envelope — no excess packaging, which I always appreciate on a consumable you're going to reorder regularly. Inside were 20 individually sealed filters, each folded into a small paper sleeve. No plastic waste beyond the individual wraps, which felt like a reasonable trade-off for keeping each filter sterile.

These are ultra-fine synthetic replacement filters specifically engineered for the ResMed AirSense 11 CPAP machine. They're not ResMed's own OEM filters — they're a third-party alternative from Bay State Importers, a brand that focuses on CPAP accessories and supplies. The pitch is simple: same function, better value per filter, delivered in bulk.

Key Features

• Precision-fit design exclusively for the ResMed AirSense 11
• Ultra-fine synthetic filtration media traps dust, pollen, and fine particles
• Completely disposable — swap and throw away in under 60 seconds
• 20 filters per pack, covering approximately 10 months of changes
• Latex-free construction for allergy-sensitive users
• No tools or technical knowledge required for installation

Hands-On Review

I started using these filters the first week of October after my previous third-party filters ran out. My AirSense 11 had been running for about eight months at that point — long enough that I was curious whether the machine itself had started pulling in more dust through a degraded filter. Opening the filter compartment on the AirSense 11 is easy: a small latch on the side, slide out the old filter, slide in the new one. Bay State Importers' filters seated flush immediately, no fiddling.

The thing nobody tells you about CPAP filters is that the difference between a two-week-old filter and an eight-week-old one is noticeable — in how your machine sounds more than anything. After swapping in a fresh filter from this pack, the intake sound on my AirSense 11 cleared up noticeably. That subtle slight wheeze I'd started to hear was gone by the next morning. Was it the filter? Probably partially. But it reinforced that these things genuinely matter.

Texture-wise, the Bay State filters feel thinner than the OEM ResMed filters I've used before — more translucent, almost like a premium paper towel rather than a felt-like material. I was skeptical at first, honestly. Thinner didn't automatically mean worse filtration, but it felt like it should. Two months in, though, my machine is running the same as always, no increased noise, no motor issues. The synthetic media seems to do its job even at a lower bulk density.

By mid-November I'd gone through six filters from the pack. The two-week cadence felt sustainable once I built it into my routine — I changed filters on Sunday evenings before bed, same time I was already doing a quick wipe-down of my mask and hose. What surprised me was how little I thought about it after the first couple of weeks. Once it becomes habit, it's genuinely effortless.

Who Should Buy It?

• Existing AirSense 11 owners who are tired of buying single-filter packs or paying OEM prices for routine maintenance.
• New CPAP users who want to stock up on consumables upfront so they never skip a filter change.
• Value-conscious buyers who understand that keeping the filter fresh extends CPAP therapy effectiveness and protects the machine motor.
• Anyone with allergies or sensitivities who benefits from more frequent filter changes and needs a bulk supply to make that practical.

Skip this pack if you own an AirSense 10 or any other CPAP model — these will not fit, and you'll just waste your money. Also skip it if you prefer OEM parts and don't mind paying more per filter for the branded experience.

Alternatives Worth Considering

• ResMed AirSense 11 Fine Filter (Official OEM) — If you want a guaranteed perfect fit and don't mind paying 2–3× more per filter, the manufacturer's own filter is the safest choice. Worth it if your machine is still under warranty and you want zero variables.
• FiltaFresh 20-Pack AirSense 11 Filters — Another third-party competitor with similar bulk pricing. A viable alternative if you find this brand out of stock, though the filtration specs are comparable.
• SoClean 2 CPAP Cleaner & Sanitizer — Not a filter replacement, but if you're concerned about bacteria and mold in your hose and mask, a sanitizing device complements these filters well. It's an investment, but it covers the hygiene angle that filters alone don't.

FAQ

Final Verdict

The Bay State Importers 20-pack CPAP filters for AirSense 11 won't win design awards, but they're a practical, reliable choice for anyone who uses a ResMed AirSense 11 and wants to keep their machine breathing clean air without constantly reordering. The per-filter cost is significantly lower than OEM options, the fit is exact, and 20 filters means you won't have to think about this purchase again for most of the year. My only real hesitation is the thinner material — whether that makes a meaningful difference over months of use is something I'll report back on at the six-month mark. For now, these earn a solid recommendation for everyday CPAP maintenance.