Nidek Nuvo Nano Portable Oxygen Concentrator
Nidek Nuvo Nano Portable Oxygen Concentrator (Model 855)
Overview
The Nidek Nuvo Nano (Model 855) is an ultra-lightweight portable oxygen concentrator — just 4.7 pounds — built for people who want supplemental oxygen without the bulk of home machinery or heavy tanks. It delivers pulse-dose oxygen across five settings, from 210 up to 1,000 mL per minute at up to 96% concentration, using breath-detection that reads your inhalation and delivers a synchronized dose at the exact start of each breath (working across breathing rates of 10 to 40 per minute). A backlit 2.8" color LCD shows your setting, battery, and status at a glance.
Made in the USA by Nidek, the Nano is FAA-approved for commercial air travel and runs on AC or DC (car) power, recharging while in use. A quick-swap lithium-ion battery gives up to about 3.5 hours on setting 1, and an auto-pulse backup feature keeps oxygen flowing if it briefly detects no breath. It ships with a protective carrying case and an adjustable shoulder strap, so it's ready to travel out of the box. Note that it's a pulse-dose device, so it isn't intended for continuous-flow needs or for nighttime use if you breathe primarily through your mouth.
Key Features
- Ultra-lightweight at just 4.7 lbs (2.1 kg) with the battery installed.
- Pulse-dose across five settings — 210 to 1,000 mL/min — at up to 96% oxygen.
- Breath-detection delivers a synchronized dose at the start of each inhalation (10–40 breaths/min).
- Auto-pulse backup delivers a steady pulse pattern if no breath is detected.
- FAA-approved for commercial air travel.
- Runs on AC or DC (car) power and recharges while in use.
- Quick-swap lithium-ion battery — up to about 3.5 hours on setting 1.
- Backlit 2.8" color LCD showing setting, battery runtime, and status.
- Smart audible and visual alarms for low battery, high temperature, breath-detection drops, and component errors.
- Easy sponge intake filter that pops out for a weekly rinse.
- Includes a carrying case with adjustable shoulder strap; made in the USA.
The Nano's calling card is weight and simplicity — 4.7 pounds and pulse-dose only, which is exactly what keeps it so light and travel-friendly. Its five settings step output evenly from 210 up to 1,000 mL/min, so each level is a clear increment. Because it delivers a bolus on each detected breath, it isn't suited to continuous-flow needs, and it isn't intended for nighttime use by mouth-breathers since it relies on nasal inhalation to trigger. The battery runs about 3.5 hours on setting 1 (less at higher settings), and it charges in the car while running — a spare battery is worth adding for longer days. FAA-ready, it's a strong pick when maximum portability is the priority.
Technical Specifications
- TypePortable oxygen concentrator
- BrandNidek Nuvo Nano (Model 855)
- Delivery ModePulse dose (breath-actuated), 5 settings
- Output by Setting210 / 420 / 630 / 840 / 1,000 mL/min
- Oxygen Concentration87%–96%
- Breathing Rate10–40 breaths/min
- Max Outlet Pressure25 PSI
- Weight4.7 lbs (2.1 kg)
- Dimensions8.3" W x 3.5" D x 6.5" H
- Sound Level49 dBA (setting 2)
- Battery14.5V, 6.8Ah — up to ~3.5 hrs (setting 1)
- Charge TimeNot more than 4 hours
- PowerAC 100–240V; DC 12–19V (car)
- Display2.8" color LCD
- Air TravelFAA-approved
- Country of OriginUSA
- IncludesUnit, battery, carry case + shoulder strap
Battery Duration by Setting
- Setting 1Up to 3.5 hours
- Setting 2Up to 3.25 hours
- Setting 3Up to 2.5 hours
- Setting 4Up to 2.15 hours
- Setting 5Up to 1.5 hours
Battery runtime varies with your setting, breathing rate, environment, and battery condition. For longer days, many users add a spare battery module.
Does it have a continuous flow setting?
No — the Nuvo Nano is pulse-dose only, delivering a measured dose of oxygen on each detected breath. That's what keeps it so light. It's also not intended for nighttime use if you breathe mainly through your mouth, since it relies on nasal inhalation to trigger; for continuous flow, choose a continuous-capable unit.
Can I run it in the car?
Yes. It includes a DC power cord, so plugged into a standard 12V vehicle outlet it runs on all settings while recharging the battery at the same time — handy for road trips and errands.
Can I attach a humidifier bottle?
No — humidifier bottles are for stationary, continuous-flow concentrators. A pulse-dose unit only outputs a brief dose when you inhale, so it can't build the line pressure needed to push air through water, and doing so would trigger a "no flow" error.
A valid prescription is required for this device. It must be configured according to your physician's guidance. Specifications and included contents are provided for reference and may be updated by the manufacturer without notice. Verify settings, contents, and prescription requirements against the product documentation before use.
This item requires an Rx or Professional License
Compliance Standard: FDA Class II Medical Device Regulations (21 CFR Part 807)
To ensure strict compliance with current Food and Drug Administration (FDA) regulations, EnhDme enforces a rigorous prescription verification policy for specific restricted medical devices. Because federal law restricts these devices to sale by or on the order of a licensed healthcare provider, orders containing prescription-regulated equipment will remain on a compliance hold and will not be dispensed until a valid prescription is successfully received and verified by our compliance team.
