---
product_id: 146545350
title: "Airthereal ADH50B Air Purifier with 3 Filtration Stage True HEPA Filter for Small Room, Bedroom, and Office Whisper Quiet - Day Dawning"
brand: "airthereal"
price: "A$47"
currency: AUD
in_stock: false
reviews_count: 13
url: https://www.desertcart.com.au/products/146545350-airthereal-adh50b-air-purifier-with-3-filtration-stage-true-hepa
store_origin: AU
region: Australia
---

# 0.3 microns filtration Portable & lightweight 22 dB whisper quiet Airthereal ADH50B Air Purifier with 3 Filtration Stage True HEPA Filter for Small Room, Bedroom, and Office Whisper Quiet - Day Dawning

**Brand:** airthereal
**Price:** A$47
**Availability:** ❌ Out of Stock

## Summary

> Breathe Fresh, Live Well! 🌬️

## Quick Answers

- **What is this?** Airthereal ADH50B Air Purifier with 3 Filtration Stage True HEPA Filter for Small Room, Bedroom, and Office Whisper Quiet - Day Dawning by airthereal
- **How much does it cost?** A$47 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/146545350-airthereal-adh50b-air-purifier-with-3-filtration-stage-true-hepa)

## Best For

- airthereal enthusiasts

## Why This Product

- Trusted airthereal brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Certified Safety:** Rest easy knowing your air purifier meets CARB and ETL safety standards.
- • **Move It, Love It:** Lightweight design allows you to purify air wherever you go—home, office, or bedroom.
- • **Silence is Golden:** Enjoy a peaceful night’s sleep with whisper-quiet operation at just 22 decibels.
- • **Smart Maintenance:** Never forget to change your filter with our built-in reminder system for optimal air quality.
- • **Breathe Easy, Live Easy:** Experience the power of True HEPA filtration that captures particles 500x smaller than a human hair.

## Overview

The Airthereal ADH50B Air Purifier features a 3-stage True HEPA filter that effectively removes particles as small as 0.3 microns, operates at a whisper-quiet 22 decibels, and is designed for easy portability. With a built-in filter change reminder and CARB & ETL certification, it ensures both safety and convenience for cleaner air in any small room, bedroom, or office.

## Description

Full description not available

## Features

- TRUE HEPA FILTRATION: Airthereal’s 3 Filtration Stage True HEPA Filter will help you breathe easier by removing particles as small as 0.3 microns. A human hair has a diameter of around 50 microns, so our filter can remove particles that are 500 times smaller than a human hair.
- SILENT OPERATION: Tired of lying in bed at night listening to the hum of your air purifier? No more! The max operating noise in sleep mode is a mere 22 decibels, making it even quieter than a whisper or a small public library.
- AROUND THE HOUSE: The ADH50B is so lightweight that you can simply unplug and move to wherever you spend the most time. There’s no need to pay extra for a bigger machine to purify your entire home when you can have super-clean air wherever you set up the purifier. Clean the air you breathe most by moving the air purifier to wherever you are located at the moment.
- FILTER CHANGE REMINDER: All air purifier filters will decrease after a few months of usage. Airthereal air purifiers come with a built-in filter change reminder so that you can continue to keep the air in your home in the cleanest condition. For best results, use an authentic Airthereal ADH50B replacement filter available on.
- CARB & ETL CERTIFIED: ADH50B meets the strict safety requirements of CARB and ETL certification.
- Note: This unit is powered by a DC adapter (120V 60Hz to 12V）. Power supply over 120V can cause damage to the unit. Ensure to connect with the appropriate power supply socket. Make sure to remove the plastic wrap from the filter before turning on the air purifier.

## Product Details

- **Color:** Black
- **Brand:** AIRTHEREAL
- **Product Dimensions:** 6.3"D x 6.3"W x 10.2"H
- **Noise Level:** 22 Decibels
- **Controller Type:** Button Control

## Images

![Airthereal ADH50B Air Purifier with 3 Filtration Stage True HEPA Filter for Small Room, Bedroom, and Office Whisper Quiet - Day Dawning - Image 1](https://m.media-amazon.com/images/I/71x-Whn6yTL.jpg)
![Airthereal ADH50B Air Purifier with 3 Filtration Stage True HEPA Filter for Small Room, Bedroom, and Office Whisper Quiet - Day Dawning - Image 2](https://m.media-amazon.com/images/I/711BVyGXjVL.jpg)
![Airthereal ADH50B Air Purifier with 3 Filtration Stage True HEPA Filter for Small Room, Bedroom, and Office Whisper Quiet - Day Dawning - Image 3](https://m.media-amazon.com/images/I/71cqE9uReRL.jpg)
![Airthereal ADH50B Air Purifier with 3 Filtration Stage True HEPA Filter for Small Room, Bedroom, and Office Whisper Quiet - Day Dawning - Image 4](https://m.media-amazon.com/images/I/81K-sdQVzvL.jpg)
![Airthereal ADH50B Air Purifier with 3 Filtration Stage True HEPA Filter for Small Room, Bedroom, and Office Whisper Quiet - Day Dawning - Image 5](https://m.media-amazon.com/images/I/81nbIDVow1L.jpg)

## Questions & Answers

**Q: I have a blinking power light which I assume the filter needs to be replaced. How does the machine know that the filter is replaced. Is there a reset?**
A: Hi there! When the Speed indicator keeps flashing in blue, it is a reminder to check and change the air filter. After replacing the filter, press and hold the sleep button for 5 seconds to reset the replacement reminder. If you have any problem, please feel free to contact us via support@airthereal.com.

**Q: How much are the filters?**
A: If and BIG IF you can find them as they are always out of stock….one filter is 20 bucks. Just one. Where as the purifier itself is only 40 bucks. Ridiculous

**Q: Can it be shipped to California? (prop 65)**
A: Hi there, yes, this model meets the CARB Certificate. It can be shipped to California.

**Q: How much power does it use in cigarette lighter mode?**
A: Hi there, we really appreciate your question. The power is 20W.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Does its job
  

*by S***N on Reviewed in the United States on November 29, 2023*

The picture is self explanatory.Its not 100% silent but not undesirable loud either.Small and compact.I will do an updated pic of a 3mth filter replacement to see if its as dramatic as the 6mths.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Works well
  

*by L***A on Reviewed in the United States on November 12, 2023*

We like this small air cleaner for travel in smoky areas in our car.

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    Second review.
  

*by S***H on Reviewed in the United States on September 16, 2020*

I had written a negative review of this unit since it was defective and stopped working shortly after use.Jane from customer service had reached out to me promptly and very graciously help me get a replacement.She was very courteous and I was very pleased with customer service.The unit currently is functioning well in the car. It is quiet .One problem I have is how to secure the unit so it can stay up in the car, a problem during car movement, stop and go. The connector can be easily disconnected and the unit does not turn on automatically when the engine was started. It is difficult to see where the start button is since the screen is all dark without power.Thanks again Jane for your excellent customer service.

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**Shop now:** [https://www.desertcart.com.au/products/146545350-airthereal-adh50b-air-purifier-with-3-filtration-stage-true-hepa](https://www.desertcart.com.au/products/146545350-airthereal-adh50b-air-purifier-with-3-filtration-stage-true-hepa)

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-03-18*