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Description
Heyer Sleep Apnea Meter AS20A ProThe Heyer AS20A Pro (also known as the Auto A20) is an auto adjusting CPAP machine used to treat Obstructive Sleep Apnea (OSA). It continuously monitors breathing patterns and automatically adjusts airflow pressure throughout the night, making it one of the most comfortable and quiet therapies available. Core Features Auto Adjusting Pressure: Intelligently identifies your breathing needs and adapts pressure in real time. AS ELEX Pressure Relief:
The Heyer AS20A Pro (also known as the Auto A20) is an auto-adjusting CPAP machine used to treat Obstructive Sleep Apnea (OSA). It continuously monitors breathing patterns and automatically adjusts airflow pressure throughout the night, making it one of the most comfortable and quiet therapies available.
Core Features
- Auto-Adjusting Pressure: Intelligently identifies your breathing needs and adapts pressure in real-time.
- AS-ELEX Pressure Relief: Provides 7 grades of pressure relief to make exhaling easier and more natural.
- Integrated Humidification: Features a water chamber with 5 heat levels to prevent dry mouth and nose.
- Auto Ramp Time: Detects when you fall asleep and gradually increases pressure, helping you adapt to therapy without feeling overwhelmed.
- Connectivity: Transfers therapy data directly via Bluetooth, Wi-Fi, or an SD card.
- Ultra-Quiet Operation: Noise levels are as low as 28 dB.
Thecnical Specs:
|
Product Model |
|
20A Pro |
| Therapy Mode |
CPAP, AutoCPAP |
|
|
Pressure Range (cmH20) |
4-20 |
|
|
Auto Ramp Time（min) |
Yes
|
|
|
As-Elex Pressure Release
|
1-7Level
|
|
|
Automatic Humidification
|
Yes
|
|
|
Idenfication of Central Apnea
|
Yes
|
|
|
AS-Dry Technology
|
Yes
|
|
|
Auto On/Off
|
Yes
|
|
|
Heated Tube
|
Yes (Optional)
|
|
|
Data Transmission
|
Cellular + Bluetooth /WiFi + Bluetooth
|
|
|
Leaking Compensation
|
Yes
|
|
|
Manual Titration
|
/
|
Yes
|
|
Therapy Data Storage
|
SD Card
|
|
|
Screen Size
|
3.5 inches LCD Screen
|
|
|
Machine Size
|
267mm × 157mm × 106mm
|
|
|
Weight
|
1.5kg
|
|
|
Working Noise
|
25.5dB
|
|
|
Power Adapter
|
Input:100-240V AC, Output:24V DC
|
|
|
weight
|
Main unit: 0.82kg with humidifier: 1.26kg
|
|
|
Adaptor
|
AC input: 100 -240V, DC Output: 24V
|
|
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 29 reviews
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Product Reviews
★★★★★ 4
Good stuff at a good price
Model: NewSLS50_52
Works well and sticks well. I used a roller and it has been over a year and everything still sticking as good as day i put it everywhere. I didnt use any adhesive but I did wipe everything down with acetone before I applied. Good stuff at a good price
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Reviewed in the United States on November 23, 2025
★★★★★ 5
Good value
Model: NewSLS50_52, Model: NewSLS50_52
Working perfectly. Install of stereo equipment and carpet left me wanting some heat and sound resistant materials.
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Reviewed in the United States on March 23, 2026
★★★★★ 5
BUY THIS ONE!
Model: NewSLS50_52
This is one of the good ones. There are other brands just as good, and manny brands are worse, but this handles well, rolls down easily, doesn't come off at all easily, and adapts to dips and curves like a champ.
Appropriately heavy and dead, I'm happy with the way it smothers panel resonances and even at muffling direct sound, like a big hand over my Uncle Harry's eternally noisy mouth. You can rip the foil but you have to work hard at doing that.
Remember to buy a brayer; you can roll overlaps nice and thin. Also remember to pre-wipe the sheet metal with a decent solvent like acetone or Stoddard/Varsol. It should last forever.
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Reviewed in the United States on April 26, 2025
★★★★★ 5
Good stuff, but watch the temp
Model: NewSLS50_52
I used this in my single cab pickup truck (89 ford.) It only took half the box (10 sheets or 25 square feet) to do the floors, but I bought the big box because I plan to do the doors, back wall, and maybe the roof as well. One thing I learned is that the temperature matters when you’re doing the installation. It was around 55F when I started in the evening, and when it dipped down into the 40s the sheets would not stick to the metal, and were hard to compress with the roller. That’s why I ended up only doing the floors and not any vertical surfaces; i will have to wait for a nice hot day. The other thing is that the foil layer on top is razor sharp at the edges, definitely wear gloves! I didn’t notice until after but I have little papercuts all over my fingers. Aside from those things, the install was easy and straightforward. The sheets cut easily with scissors, and any goo that ends up on your hands or scissors can be cleaned up with acetone (nail polish remover), or lacquer thinner. I would use this stuff again.
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Reviewed in the United States on November 16, 2023
★★★★★ 5
Very efficient!
Model: NewSLS50_52
Amazing the difference it makes on dumping the noise. Very easy to install. Pell and stick literally! Great!
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Reviewed in the United States on November 23, 2025