Priced as of May 17, 2026
4.3(134 ratings)Buy on AmazonSaved to your guest loadout. Sign up to also save to your Cabinet (consumables) or Kit (tools you own).
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Last reviewed May 17, 2026
TL;DR Handles routine smoke, pet, and musty odors in compact and midsize cabins via a fixed 20-minute Pulse Technology cycle. No mg/h output disclosed, no timer adjustment. Area evacuation required — ozone at treatment concentrations is a genuine respiratory hazard.
What it is and how it performs
The Micro3 plugs into the vehicle's 12V socket and delivers a fixed 20-minute Pulse Technology cycle — short, controlled ozone bursts. Output in mg/h is undisclosed. Community results (4.3★, 134 reviews) confirm smoke, pet, and musty odor reduction in compact and midsize cabins; heavy contamination or large cabins need multiple cycles. Re-insert to run a second pass. Amazon lists UL Certified but this has not been verified in UL Product iQ — scored as CE-only.
Who should buy this — and who should skip it
Right for compact or midsize vehicle owners who want plug-in-and-leave simplicity. Skip it for full-size trucks, severe smoke or mold, or where output control matters — a unit with a disclosed mg/h rating and adjustable timer gives control the Micro3 doesn't.
Safety and environmental impact
Ozone at treatment concentrations exceeds OSHA's 0.1 ppm TWA exposure limit — the vehicle must be unoccupied and sealed during operation. Avura's A+ content specifies a 10-minute aeration period after the cycle; allow additional dissipation time in tightly sealed or larger cabins. The auto-shutoff is the primary safety control. At high concentrations, ozone is lethal — this is the mechanism of action, not a disclaimer. No confirmed independent safety certification; CPSC recall negative as of May 2026. Standard e-waste (Best Buy drop-off, municipal collection); no manufacturer take-back documented.
Frequently asked questions
Is the Avura Micro3 powerful enough for a full-size truck or heavy smoke smell?▾
The Micro3's ozone output (mg/h) is not disclosed by Avura, and community evidence at 134 reviews points to reliable performance for compact and midsize vehicle odors. Heavy smoke contamination or large truck and SUV cabins are likely to need multiple treatment cycles. Buyers with large vehicles or severe contamination should consider a higher-output unit with a disclosed and community-corroborated mg/h rating.
Can I adjust the treatment time on the Micro3?▾
No. The Micro3 runs a fixed 20-minute cycle via Pulse Technology. There is no timer adjustment. If you need another cycle, unplug the unit and re-insert it to run a second 20-minute pass. Buyers who need granular treatment control for different vehicle sizes or contamination levels should look for a unit with an adjustable timer.
How long should I wait before re-entering the vehicle after treatment?▾
Avura's A+ content specifies a minimum 10-minute aeration period after the treatment cycle — this appears to be a ventilation step, not a confirmed full ozone-dissipation measurement. Ozone dissipation time varies with cabin volume, ambient temperature, and cabin sealing. Allow additional time beyond the 10-minute guidance in tightly sealed or larger cabins, and never re-enter during active ozone generation.
Does the Micro3 require a power outlet?▾
No. The Micro3 plugs into the vehicle's 12V socket (cigarette lighter adapter) and draws 12 watts during the treatment cycle. The vehicle ignition must be in accessory or on mode to power the 12V socket.
From the manufacturer
Marketing copy from Avura, via Amazon. Not editorial.
- •CAR OZONE GENERATOR: Avura ozone generator is now available in a portable plug-in unit for your car. The MICRO3 produces ozone to remove your vehicle of odors and smells and keeps your car smelling fresh and clean.
- •PLUGS IN TO 12V OUTLET: Plug the MICRO3 car air freshener into 12-volt socket (cigarette lighter adapter) when the vehicle is unoccupied. Once you plug it in, the MICRO3 will run for 20 minutes.
- •PULSE TECHNOLOGY: Avura smoke odor eliminator contain patented Pulse Technology, which delivers safe concentrations of ozone into the air in short, controlled durations to deodorize without harming your car's interior nylon, leather, vinyl, polyester, or fabric.
- •LED INDICATOR & AUTO SHUT OFF: The MICRO3 odor eliminator has an automatic shut off feature that activates after 20 minutes of use. A green LED light indicates when it is in operation. To run a second cycle, simply unplug and re-insert into the 12V adapter.
- •DESTROYS ODORS: There's not an odor the MICRO3 car air purifier can't eliminate, including cigarette smoke, spoiled food or milk, pet smells, athletic clothing smells, or just plain old car odors.
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Manufacturer specifications
- Product Dimensions
- 4 x 2 x 1.75 inches; 4.66 ounces
- Item model number
- AV-MICRO3
- Date First Available
- February 16, 2023
- ASIN
- B0BW17D4NC
- Best Sellers Rank
- See Top 100 in Automotive
- Power Source
- DC
- Control Method
- Touch
- Filter Type
- Microfilter
- Floor Area
- 20 Square Feet
- Noise Level
- 10 Decibels
- Controller Type
- Button Control
- Wattage
- 12 watts
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