Air Supply Rechargeable AS-300R Wearable Ionic Air Purifier

£129.95

The Air Supply AS-300R is a compact, wearable ionic air purifier that clips onto a neck cord and sits in your personal breathing zone. It uses a solid platinum emitter to generate negative ions, which electrostatically charge nearby airborne particles (such as dust, pollen, smoke, and odour molecules), pushing them away from the immediate area around your nose and mouth.

It's filterless, fanless, silent, and rechargeable, with up to 28 hours of battery life per charge, making it a popular choice for travel, offices, and other confined spaces.

It's important to be clear about what this device is, and isn't. This is a personal comfort device, not a medical device. It is not intended to diagnose, treat, cure, or prevent asthma, COPD, allergies, infections, or any other medical condition, and it should not be used as a substitute for prescribed medication, inhalers, or medical treatment.

If you have asthma, COPD, or another respiratory condition, please continue any prescribed treatment and speak with your doctor about your specific triggers and management plan, rather than relying on this or any air purification device.

Written around the device's actual mechanism (localised particle reduction), not disease prevention or treatment:

- Compact, wearable design that sits in your personal breathing zone
- Filterless and fanless, so there's no maintenance or replacement parts
- Silent operation
- Ultra-low ozone output, below the FDA's threshold for indoor medical devices
- Up to 28 hours of battery life per charge
- USB rechargeable, convenient for travel

The Air Supply AS300R is a wearable air purifier worn around the neck. This rechargeable air purifier emits over 50 million negative ions per cubic centimetre to push airborne particles away from your breathing zone. It is silent, fan‑less, and filter‑less, requiring zero maintenance. As a wearable purifier, it weighs only 85 grams and includes a breakaway neck strap for safety. Ultra‑low ozone creation (<0.028 ppm).

Ion Density: 50 million ions/cm³
Ion Wind: >8.2 metres per minute
Battery: Up to 28 hours per charge (3-5 hours to recharge)
Power Usage: 0.2 watts
Ozone Output: <0.028 ppm (UL, FUJI, USC, Intertec)
Emitter: Solid platinum with stainless steel grid
Dimensions: 5 × 7.6 × 1.5 cm
Weight: 85 grams
Included: Breakaway neck strap, USB charging cable

'- Wear around neck or clip to a shirt pocket using the included lanyard.
- Turn on via the button; select desired ion output level.
- For best results, use in confined, low‑airflow spaces (offices, cars, waiting rooms).
- Recharge via USB cable (full charge in 3‑5 hours; run time up to 28 hours).

Note: If you have a pacemaker or implanted cardiac defibrillator, consult your doctor before use.

'- Not a substitute for N95 masks or HEPA filters in high‑risk medical settings.
- Consult your doctor before use if you have a pacemaker or implanted cardiac defibrillator.
- Effectiveness may be reduced outdoors or in high‑airflow environments.
- Keep away from children.
- Do not disassemble or modify the device.

This information is not a substitute for professional medical advice. Always seek the advice of your physician.

At Insight Integrative Health Clinic, we recommend a holistic approach to respiratory wellness — combining environmental measures, lifestyle adjustments, and clinical guidance.

Frequently asked questions

Everything you need to know before you order.

How does this device actually work?

It uses a solid platinum emitter to generate negative ions, which electrostatically charge nearby airborne particles like dust, pollen, smoke, and odour molecules, pushing them away from your immediate breathing zone. It doesn't filter or trap air the way a traditional air purifier does.

Will this protect me from colds, flu, or other infections?

We can't make that claim, and neither does the manufacturer. This is a personal comfort device, not a medical device, and it's not intended to diagnose, treat, cure, or prevent any illness or infection. If you're concerned about infection risk, standard measures like hand hygiene, ventilation, and vaccination where appropriate remain the evidence-based approach.

Is it safe to wear? Does it produce ozone?

Yes, it's designed to produce ultra-low ozone, tested at less than 0.028 ppm, which is below the FDA's 0.05 ppm limit for indoor medical devices. It's also been tested for safe use around aircraft avionics.

I have asthma or COPD. Will this help my breathing?

Please don't use this device as a substitute for your prescribed asthma or COPD treatment. It's not a medical device and hasn't been evaluated as a treatment for any respiratory condition. If you're looking for ways to manage a respiratory condition, that conversation belongs with your GP or respiratory specialist.

How long does the battery last, and how do I charge it?

Up to 28 hours per full charge, and it takes 3 to 5 hours to fully recharge via the included USB cable.

Does it need a filter or any other maintenance?

No, it's filterless and fanless, so there's nothing to replace or maintain beyond regular charging.

Is this the same as a large room air purifier?

No. This is a personal, wearable device designed to affect the small area immediately around your nose and mouth, not a whole-room air purification system. It shouldn't be expected to have the same effect as a larger, room-scale device.

A More Thoughtful Approach to Health

For over 40 years, Insight Care Clinic has helped patients across London take a more personalised and integrative approach to long-term wellbeing. Our consultations look beyond symptoms to understand the full picture of your health, combining practitioner expertise, integrative therapies, and tailored guidance to support lasting balance and wellbeing.

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