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AirTamer A315 Black | Personal Air Purifier Necklace

Next generation of the AirTamer! Just wear it around your neck. Removes cigarette smoke, viruses, PM2.5, pollen, molds and dust mites from your personal space to provide you with clean air.
 
P/N: ATMR-7-B
US$149.99
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Masaharu Nemoto, Technical Supervisor & Quality Assurance, Ion Trading
Technical Supervisor & Quality Assurance
Masaharu Nemoto · Ion Trading (Universal Plan Co., Ltd.)

✓With 30+ years verifying our products, I personally check the performance and technical details shown on this page.

Inquiry
2-Year Warranty

We repair the product or replace it with a new one. All products are covered for two years.

Delivery by DHL/FedEx

US/SG 1-3 · Asia 1-5 · EU 2-5 · AU/NZ 2-5 · Others 2-6 days (just FYI)

Product Summary


  • The A315 is a successor model of the A310 which has been highly rated for its performance to remove side stream cigarette smoke, pollen and so on. This new model is lighter and smaller and it allows you to replace the lanyard and the front cover panel.
  • Massive amount of negative ions produce beneficial effects on health.
  • It weighs only 39g (1.3oz) and fits your palm, so you can wear it around your neck.
  • The specially designed conductive lanyard helps you to absorb negative ions effectively. About 420,000 (pcs/cc) can be detected at 32cm(1ft) away.
  • This small device has over 4x higher air purification capabilities than competing products. (a)
  • Removes 98.9% of smoke particles in only 5 minutes (b), 99% of airborne viruses in a 0.2m3(7.0ft3) space in 32 minutes.
  • We guarantee the performance as a specialist with 27 years experience in the negative ion industry.
  • Many reviews say that it is good for virus protection and removes cigarette smoke.
  • No maintenance is required and no noise disturbs you.
  • It works about 30-40 hours once fully charged. Good for travel!

(a) 4 products were chosen randomly. (b) Standards used: ANSI/AHAM AC-1-2006


Outline specifications

Coverage area Breathing space
Reduction of cigarette smoke98.9% in 5 minutes (Standards used: ANSI/AHAM AC-1-2006)
Reduction of airborne viruses99% in 27 minutes (0.2m3(7.0ft3) space)
Negative ion count·Blowoff point: 2,000,000 (pcs/cc)+
·32cm (1ft) away from ion blow off point: 420,000 (pcs/cc)
PowerUSB
Battery charging time2-3 hours
Continuous operation hours30-40 hours depending on temperature and humidity
DimensionsH67mmXW38mmXD19mm (H2.6"XW1.4"XD0.7")
Weight39g
Replacement Conductive LanyardYes
Replacement Negative Ion Emitter CoverYes


Video
Play time: 1:17/No sound with subtitles
Q & A


Related products


Customer Reviews

5 ★ 131
4 ★ 54
3 ★ 6
2 ★ 0
1 ★ 1
Ms. M.T Verified user
Osaka, Japan
Reviewed on 2025-12-26

It is a necessity for someone with a cigarette allergy.

Reason(s) why I purchased from you: The staff member was very kind. They treated me with great sincerity. At first I only meant to try it, but I plan to buy a higher-ranked model too.
Detailed review: It is a necessity for someone with a cigarette
Mr. S.A Verified user
Kanagawa, Japan
Reviewed on 2026-02-08

For cigarette smell in the car. I really feel the smell that sticks to my clothes is reduced.

Reason(s) why I purchased from you: I was looking for portable deodorizing goods and learned about the AirTamer, so I bought it.
Detailed review: I often ride in cars for work, and sometimes ride with smokers, and I had felt cigarette smell
Ms. H.R Verified user
Hawaii, United States
Reviewed on 2018-11-12

I noticed an immediate difference in my breathing ability--it was a lot better!!!

Purchase reason: After researching the internet, I communicated with my top 2 choice companies to inquire about the A315. It was a no-brainer to purchase from Ion Trading for 3 reasons:
1. Ion Trading Customer Service immediately responded to my
Ms. Y.I Verified user
Gifu, Japan
Reviewed on 2024-12-01

The cigarette smell around me was completely different between when I was not using it and when I was using it!

Reason(s) why I purchased from you: The reviews were good, and the refund guarantee was the deciding factor!
Detailed review: There is a smoking area near my seat at work, and the cigarette smell was a problem. The cigarette smell around me was
Mr. T.S Verified user
Tokyo, Japan
Reviewed on 2025-04-02

I use it at classical concerts and parents' meetings.

I am happy because: I was reassured because you answered my questions politely before I bought it. I used an air purifier that made noise before, and I had trouble because I could not use it in quiet places. The AirTamer makes no sound at all, which
Ms. J.C Verified user
Singapore-city, Singapore
Reviewed on 2019-09-28

It does feel surrounding air becomes fresher after wearing it.

Purchase reason: Through a friend's recommendation.
About effects: Still new to the product however it does feel surrounding air becomes fresher after wearing it. The device is light in weight, easy to use and perfect for travelling.

See all 192 Customer Reviews Rating: 4.6

[Please note] These are individual impressions and do not guarantee the efficacy or performance of the product; results vary from person to person. If you require medical treatment, please consult a physician. Reviews of other products in the same series are also included. Reviewers may receive a small gift (a silicone bracelet) for posting a review; reviews are not selected or filtered based on their content, and only expressions that violate applicable laws or regulations may be edited, with the reviewer's understanding. Customer Reviews originally written in Japanese are translated into English by Ion Trading.


Customer Reviews
AirTamer A315 Black | Personal Air Purifier Necklace

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Next generation of the AirTamer


✔ Successor model of the highly rated A310

The AirTamer A315 was developed as a successor model of the highly rated A310.

Comparison of the old/new AirTamers
The new AirTamer is lighter and smaller. You can clip it to your shirt. You can replace the lanyard.

 AirTamer A315AirTamer A310

US$149.99

US$149.99
Air purification CapabilityAlmost the same
Weight39g (1.3oz)50g (1.7oz)
DimensionsH67mmXW38mmXD19mm
(H2.6"XW1.4"XD0.7")
H85mmxW42mmXD22mm
(H3.3"xW1.6"XD0.8")
Volume3.4cm3 (0.21in3)4.9cm3(0.3 in3)
Pocket/Shirt ClipYesNo
Replacement Conductive LanyardYesNo
Replacement Negative Ion Emitter CoverYesNo
Run time30-40 hours150 hours



Removes airborne pollutants such as cigarette smoke, viruses, PM2.5, pollen, molds and dust mites


✔ High ion delivery capabilities to capture and remove airborne pollutants!

Negative ions capture airborne pollutants such as cigarette smoke, viruses, PM2.5, pollen, molds and dust mites to remove them from the air. Air purifiers, which release negative ions, use this principle and they need to have enough ion delivery capabilities to perform as air purifiers. The AirTamer A315 has high ion delivery capabilities, so it delivers negative ions to your nose/mouth when you are wearing it around the neck. Thus, you can enjoy the purified air.



You can enjoy beneficial effects as negative ions reach you


✔ Air purification performance determined by ion delivery capabilities

While many mobile air purifiers and ion generators are sold in the market, very few products can deliver ions to the destination.

You cannot enjoy beneficial effects if negative ions do not reach your mouth/nose. Very few users pay attention to this important factor. FYI: How far negative ions travel (How to Choose the Best Negative Ion Generator)

✔ As many as 420,000(pcs/cc) ions at 32cm away!

You can enjoy beneficial effects at a distance away from the AirTamer as it has high ion delivery capabilities which ensure that a lot of negative ions reach the mouth/nose.




High air purification capabilities provided by the specially designed conductive lanyard!


Generally, a negative ion generator designed to be worn around the neck is not capable of producing a lot of ions due to the electrical characteristics.

The specially designed lanyard made of a conductive material helps the AirTamer A315 to generate a lot of ions and emit them into the air. This is why it has high air purification capabilities. FYI: Why does it have such high air purification capabilities?



✔ Performance guaranteed by a negative ion specialist with 27 years experience in the industry!

We guarantee the performance as a specialist with 27 year experience in the negative ion industry. Actually, some of the products produced by other companies did not meet your requirements due to poor ion distribution. The AirTamer A315 has much higher air purification capabilities than competing products because ions reach you.

We highly recommend this model if wearing a mask does not work. It will surely remove airborne pollutants such as cigarette smoke, viruses, PM2.5, pollen, molds and dust mites. FYI: How far negative ions travel (How to Choose the Best Negative Ion Generator)


Wearing around the neck to enjoy the clean air at anytime and anywhere


✔ Massive ions to purify the air & Lightweight body to wear for long hours

The AirTamer A315 is a mobile negative ion generator. It weighs only 39g (1.3oz). You can wear it around your neck. The lightweight body is good for long hours usage. About 420,000 (pcs/cc) negative ions can be detected at 32cm(1ft) away. You can enjoy the clean air at anytime and anywhere.



✔ Your personal air purifier outdoors, in the office or on an airplane

It removes second-hand cigarette smoke, viruses, pollen and PM2.5 particles outdoors or in the office where you cannot install a stationary air purifier. You can also use it on an airplane where the air is often dirty.




Removes 98.9% of smoke particles in only 5 minutes, purifies the air over 4x faster than competing products


✔ Removes cigarette smoke particles 4x faster than competing products (*1)(*2)

The graph below shows how 5 air purifiers remove cigarette smoke particles.

While the AirTamer A315 removes 98.9% of smoke particles in only 5 minutes, it takes others 20 minutes or longer to remove the same amount of particles.

Thus, the AirTamer A315 purifies the air over 4x faster than others. You can wear it around your neck and it removes cigarette smoke, viruses, PM2.5, pollen, molds and dust mites at anytime and anywhere.




Removes 99% of airborne viruses in 27 min


The A315 removes 99% of airborne viruses in a 0.2m3(7.0ft3) space in 27 minutes.



  • This result may vary under practical use conditions.
  • Testing laboratory: Kitasato Research Center for Environmental Science
  • Test report: KRCES - Bio. TEst Report No.2018_0273
  • Test report issue date: 17 Jan 2019
  • Test name: Evaluation test of inactivation efficacy of Portable air purifier "Air Tamer on airborne virus" (0.2m3 space)
  • Test method: The device runs in an approx. 0.2m3 space. We referred to Anex D, "The evaluation test for removal efficacy on airborne virus" in Japan Electrical Manufacturers' Association standard JEM 1467 "household air cleaner" to evaluate the test result.
  • Figure drawn by: Universal Plan Co., Ltd.


Removes second-hand cigarette smoke to purify the air


✔ Removes second-hand cigarette smoke to purify the air

The photos below show just after the bottles are filled with cigarette smoke and 30 seconds after that. A lot of smoke remains in the left bottle, while there is no smoke in the right bottle in which the AirTamer A315 is working. You can see through it as smoke has disappeared. (*)





There is no smoke at all inside the bottle. (*)


(*) It takes longer to remove smoke in a room which is much larger than the bottle.


Watch the demonstration video


Highly rated by many users!



Can be used in two ways at home, in the office and anywhere


1. Wear around the neck

You can wear it around your neck. Please be sure to use the Conductive Lanyard which comes with the generator for maximum performance.



Q: I am going to wear it around the neck and hide it under the shirt during work so that it cannot be seen by others. Does it affect the performance?
A: Yes, it does. We suggest you should wear it so that the blow off point is exposed to the air. You can clip it to your pocket and hide it inside


2. Place on a table/desk

You can place it on a table/desk and use it as your personal air purifier. Negative ions can reach up to 1m +/- away from the device. i.e. You can absorb fewer ions than when wearing around the neck. Please be sure the Conductive Lanyard makes direct contact with the table/desk for better ion distribution.



Comes with convenient/safety features


Rechargeable via USB
It continues to work about 30-40 hours after a 2-3 hour charge.

Indicator lights


  • Indicator lights (Green): The green indicator lights located on the back side of the body blink when the device is properly generating negative ions. They do not turn on when it is not working normally or when the battery is flat. You can make sure that negative ions are being generated.
  • Remaining battery capacity (Green): The green indicator lights also show you the remaining battery capacity. 4 lights blink when the battery is fully charged and 1 blinks when the remaining battery capacity is 25%. It lets you know that it is time to charge.
  • Charge status (Red): The red indicator light turns on brightly when being charged and it turns on dimly after being fully charged.

    No wind, No noise, Low ozone concentration
    You feel no wind and you hear almost no noise as this product does not have a built-in fan to blow off ions. You can use it in a crowded train.
    While many negative ion generators produce a certain amount of ozone which is harmful to the human body, the AirTamer A315 produces less than 0.0001ppm ozone, which is well below the safety standard established by the Japanese Ministry of Health, Labour and Welfare.


    Adjustable Conductive Lanyard
    You can adjust the length of the Conductive Lanyard.



    No EMI interference
    The AirTamer A315 conforms to the FCC's (Federal Communications Commission) specifications Part 15 - Class B. This regulation sets exact limitations on the amount of electromagnetic interference (EMI) allowable from digital computing and other electronic devices when used in the home or a residential area.



    Cautions before use

    1. The Conductive Lanyard which comes with the AirTamer A315 plays an important role to generate negative ions effectively. It is conductive but it is safe to touch it.
    2. This product can be charged via USB. You can use a USB power adapter for Smartphones or a USB port of a PC. A USB power adapter is not included in the package.


      * You need to get a USB power adapter by yourself.

    3. Consult a doctor prior to using this product if you:
      • are using a pacemaker
      • are under 10 years of age
      • have a history of respiratory problems or heart or lung disease


    Q & A


    1. How long is the life span of the AirTamer A315?
    It will continue to work for about 2 years if you use it 24/7. Mathematically the life span will be about 6 years if you use it for 8 hours a day. Usually it will work longer. You can turn it off when not in use in order to extend the life span. Of course, you can continue to use it after the above-mentioned periods if it is working properly.

    The negative ion emitter brush determine the life span. They become worn out as they generate negative ions. You can replace the brush with a new one.

    2. How can I clean the unit's exterior?
    • Turn unit off.
    • Gently wipe the exterior with a soft cloth moistened with warm water or mild detergents only. Do not use harsh solvents or chemicals for cleaning.
    • Remove all moisture with a soft, dry cloth.
    *Note: Always allow the exterior to dry completely before turning your AirTamer A315 back on.

    3. Does it need filters?
    No, it does not.

    4. Do I need to purchase any consumables on a regular basis?
    No, you do not.

    5. I have a pacemaker. Can I use this product?
    You should consult a doctor before use. The AirTamer A315 may interfere with the pacemaker function.

    6. Does this product produce ozone? If it does, is it harmful to the human body?
    It produces less than 0.0001ppm ozone. It is not harmful at all.

    7. Can I use this product in an airplane? I am afraid it may cause EMI interference.
    This generator does not cause EMI interference. You can turn it on in an airplane. Electric appliances emit electromagnetic waves. The AirTamer A315 conforms to the FCC's (Federal Communications Commission) specifications Part 15 - Class B.

    8. Is this product water-proof?
    It is not. Please be careful especially when raining.

    9. What is the power supply?
    This product can be charged via USB. You can use a USB power adapter for Smartphones or a USB port of a PC.

    Please note: A USB power adapter is not included in the package.

    10. How long does it work once fully charged?
    It continues to work about 30-40 hours after a 2-3 hour charge.

    11. Does this negative ion generator come with a warranty?
    We offer 2 years warranty.

    12. Can you repair it if it does not generate negative ions after the warranty period expires?
    We can repair for a fee. Please contact us.

    13. Why does it have such high air purification capabilities?
    Specially designed Conductive Lanyard & High efficiency electrical charge process
    We have measured ion counts of many mobile negative ion generators since 1996. Most of them generate fewer ions than the manufacturers claim. Some products generate no ion at all!

    This is because it is hard for mobile generators to obtain a good grounding effect. A negative ion generator cannot convert electric power into negative ions effectively without good grounding.

    The AirTamer has solved this technical problem. The specially designed Conductive Lanyard provides a good grounding effect and the high efficiency electrical charge process technology dramatically improves ion generation efficiency. This is why this product generates a lot of ions and has higher air purification capabilities than others.

    14. Do I have to wear around the neck when in use?
    You can place it close to the body instead of wearing around the neck. It generates fewer negative ions but you can still enjoy negative ion effects.

    15. Does it generate wind noise?
    No, it does not.

    16. I often wear a flu mask. Are negative ions absorbed before reaching my nose/mouth?
    We do not have exact data but it has been said that a certain amount of negative ions permeate through cloth. However, a lot of negative ions are absorbed by the mask. We suggest you should expose at least the nose to effectively take the negative ions generated by the AirTamer A315.

    17. Will it protect the wearer from the effects of second-hand smoke?
    It cannot remove cigarette smoke completely but we have received reports that it helps.

    18. Do all particles/waste/dust collect inside the machine?
    No, they do not. They combine with negative ions and fall onto the floor.

    19. Do negative ions have an effect on odors? My co-worker wears a very strong perfume will this device help remove the offensive smell?
    The AirTamer A315 does not provide wider coverage. It will not remove the smell completely. If you are looking for a negative ion generator which provides wider coverage, the "Medical Ion Mini" is the option.

    20. Is it true that no purifier can actually effectively remove industrial/transport pollution as the particles are too small?
    The AirTamer A315 can remove small particles. Negative ions emitted by it and small particles combine together and fall onto the floor to remove the particles from the air.

    21. What does pcs/cc stand for?
    It stands for the number of negative ion molecules contained in 1cc.

    22. What's the price if I buy two/bulk?
    Please contact us if you are going to purchase 10 pcs or more as we can offer discounts.


    Specifications


    P/N ATMR-7-B
    Product name AirTamer A315 Black | Personal Air Purifier Necklace
    Negative ion generation methodCorona discharge
    Material of ionizing electrodeCarbon
    Negative ion count 0cm(0ft): 2,000,000+ (pcs/cc)
    16cm(0.5ft): 2,000,000+ (pcs/cc)
    32cm(1ft): 420,000 (pcs/cc)
    Ozone production0.0001ppm or less
    Body colorBlack
    Body materialABS resin
    Weight39g (1.3oz)
    DimensionsH67mmXW38mmXD19mm (H2.6"XW1.4"XD0.7")
    External power supplyUSB
    Charge viaUSB
    Battery charging time2-3 hours
    Continuous operation hours30-40 hours +/- depending on temperature and humidity
    Ion generation indicationLED
    Manufactured byFilterStream
    AccessoriesConductive Lanyard, USB charging cable, Deluxe hard case
    Limited Warranty2 years from the date of purchase


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Ion Trading
Universal Plan Co., Ltd.
107 Tachikawa-Lumiere, 3-5-1, Ichiban-cho, Tachikawa-city, Tokyo, 190-0033, Japan
Phone: +81-42-848-5311 Fax: +81-42-848-5148
Copyright (C) Universal Plan Co., Ltd. 1993-2026

Japanese Corporate Number: 1012802002452 (National Tax Agency Japan)