AirJet makes a MacBook Air perform like a MacBook Pro
A new solid-state cooling technology called AirJet promises to boost the sustained performance of fanless devices like the MacBook Air to MacBook Pro levels by using vibrating membranes instead of traditional fans. Commenters weigh its potential benefits — thinner, quieter laptops and better thermals for consoles and small PCs — against concerns over efficiency, noise characteristics, dust, condensation risks, business strategy (including patents and possible acquisition by Apple), and whether Apple would even want such cooling given its product segmentation and design trade-offs.
AirJet concept and current status
- The MacBook Air mod is a proof-of-concept, not a product or kit.
- AirJet is currently sold only to OEMs; there is at least one commercial mini-PC using it.
- Some see the demo as a way to attract an acquisition or exclusive deal rather than build a broad components business.
- Others argue it could stand alone if it can secure purchase agreements and scale production.
Business model, patents, and Apple
- Many expect any successful next‑gen cooling tech to be acquired by a major player (Apple, Samsung, etc.) and used exclusively.
- Some dislike the idea of exclusivity “locking up” the tech, but others note that patents and defensive patent war chests make this the norm.
- There is skepticism that Apple would embrace it: Apple historically accepted thermal limits in favor of design and uses the Air/Pro split to segment performance.
- Others think Apple could integrate it to trade size, battery volume, and noise in more premium or high‑power products.
Efficiency, noise, and dust
- AirJet claims ~10.5 W heat removal for 1.75 W power and ~1750 Pa backpressure, ~10x a typical notebook fan.
- Some question overall efficiency vs. conventional fans and the battery-life cost.
- High static pressure could enable dust filters and more robust use in dusty environments, but claims are seen as unproven without independent testing.
- Noise is quoted around 21–25 dBA; some say this should be effectively inaudible, others worry about higher‑pitch or ultrasonic components and sensitivity of animals. Actual subjective noise is described as noticeable but not loud in at least one YouTube test.
Technical mechanism
- AirJet uses vibrating piezoelectric membranes plus internal valves to create directional airflow and high backpressure from ultrasonic oscillations.
- Several commenters want clearer, more intuitive explanations than what’s in marketing or patents; the exact mechanism remains “unclear” to non‑experts in the thread.
Use cases and limitations
- Many see the biggest value in thin, silent, or dust‑sensitive devices: ultra‑thin laptops, consoles, industrial PCs, fanless systems.
- For MacBook Air specifically, some argue active cooling undermines its “silent fanless” identity and product segmentation.
- Others, including musicians and developers, like the idea of sustained high performance in a budget, near‑silent machine.
Thermals, mods, and safety
- Past Intel MacBooks are widely described as hot and noisy; Apple Silicon machines are reported as dramatically cooler and quieter.
- A simple “thermal pad” mod on the M1 Air is reported to significantly delay throttling but increases chassis/battery temperatures and raises comfort/safety questions.
- Users discuss crude cooling hacks like ice packs; others warn about condensation, internal moisture, and potential hardware damage.
- Concerns are raised about surface temperature regulations and burn risk if device cases are used too aggressively as heatsinks.