Refurbished Airflow & Air Quality — 23 Deals

23 open-box and refurbished Airflow & Air Quality deals are live for shoppers in the US right now, with discounts averaging 28% off retail. Prices range from $8 to $2,164, and every listing shows the seller's condition grade, current price, savings versus list price and stock status — so you can compare before you buy. Top brands on sale include Triplett, Testo, PinoTec and bonoch. Inventory syncs from Amazon and other partner stores throughout the day; open-box stock is usually one-of-a-kind, so the best deals sell out fast.

23 live US listings.

USA

Testo

testo 300 Combustion Analyzer HVAC Kit - Residential Combustion Leak Tester for Flue Gas, Draft, Differential Pressure, Ambient CO Levels of Heating Systems - Natural Gas Leak Tester with Spare Probe

$2,163⁹³

Triplett EPC175 Particle Counter and Air Quality Meter, Displays Air Temperature, Relative Humidity, Formaldehyde (HCHO) and TVOCs

$150⁴⁸

Testo 550i I App Operated Digital Manifold for air Conditioning, Refrigeration Systems and Heat Pumps – with Bluetooth

Used

$186³⁶

$336.99

-45% Save $150.63

Update: 20 hours 46 mins

Buy at Amazon.com

USA

Triplett

Triplett FM260 Formaldehyde and TVOC Air Quality Meter

$381⁹³

16 in 1 Air Quality Monitor Indoor 9 AQI+7 Alerts, CO2 Monitor Air Quality Tester for CO2, TVOC, PM2.5 PM1.0 PM10, HCHO Temperature Humidity AQI & Time Air Quality Meter for Home (Gray)

$32¹⁹

Triplett AM320 Thermo-Anemometer with Built-In IR Thermometer, Air Velocity, and Air Flow

$262⁸⁶

Airthings 2989 View Radon - Radon Monitor with Humidity & Temperature Detector - Battery Powered Mobile APP, WiFi, Alerts & Notifications

$150¹⁴

5-in-1 Portable Air Quality Tester

$12⁰⁰

5-in-1 Professional Indoor Air Quality Monitor Indoor Portable CO2 Monitor | Temperature | Formaldehyde Detector | Humidity TVOC | Air Quality Tester - Confined Space Clean Air Monitor(Bright White)

$12⁰⁰

Triplett CFM150 CFM/CMM Air Flow, Velocity, and Temperature Thermo-Anemometer + RH

$200³⁷

bonoch 16 in 1 Air Quality Monitor Indoor 10h-Battery & 5.5" Display 9 AQI+7 AQI Alerts, CO2 Monitor, Air Quality Tester for CO2, TVOC PM2.5 PM1.0 PM10 HCHO Temperature Humidity AQI & Time Air Meter

$57¹⁷

Professional Indoor Air Quality Monitor with AQI Alerts, Portable Real-Time Detector for Home, Car, Plants & Pet (Black)

$58⁹⁹

LUTIFIX Manometer, Dual-Port HVAC Manometer with 7 Adapters, 10 Units Switch, Data Locking & Storage, Magnetic Back, Gas Pressure Tester, -100~300Kpa, PT530

Used – Mint

$71¹⁹

$88.99

-20% Save $17.80

Update: 12 hours 12 mins

Buy at Amazon.com

USA

Coiliiot

Coiliiot Air Quality Monitor Indoor – CO2 Detector, VOC Meter and AQI Tester Tracks TVOC, HCHO, PM2.5 & PM10 with Temperature & Humidity Sensor for Home Office (White)

$59⁹⁹

Triplett DO163 Replacement Membrane Kit for DO160 Dissolved Oxygen Meter Pen

$66⁵²

Klein Tools ET180 Digital Manometer, Air and Gas Pressure Tester, Differential Dual Port Pressure Gauge, Large LCD Display with Backlight

$105⁹²

PT503 Manometer Gas Pressure Tester,Dual-Port HVAC Digital Manometer with Range of -100 to 200 KPa, 6 Units, Data Retention, 7Adapters,

$28⁷⁹

8-in-1 Air Quality Monitor Indoor, CF-20 Portable Air Quality Tester CO2 Monitor (PM2.5, PM10, CO2, VOC, Formaldehyde, Humidity, Temp) Wildfire Protection Long Battery Life & Real-Time Data

Used

$75⁹⁹

$79.99

-5% Save $4.00

Update: 21 hours 26 mins

Buy at Amazon.com

USA

KAYENQO

Mold Test Kit for Home - 6 Simple Detection Tests,Test HVAC System,Home Surfaces,&Indoor Air Quality Testing Kits,DIY black Mold Detector at Home,Includes Detailed Mold Identification Guide,air Tester

$11⁷⁵

TESIA Black Mold Test Kit for Home – AI Detection App, 8 Tests + 30 Scans

$33²⁴

MOLD ARMOR Do It Yourself Mold Test Kit

$8²⁴

UHARBOUR LP Gas Manometer Pressure Tester 0-35" W.C, 1/8" NPT

$32²⁹

Manometer, RISEPRO® Digital Air Pressure Meter and Differential Pressure Gauge HVAC Gas Pressure Tester

$28⁴¹

Airflow & Air Quality open-box FAQ

How much can I save on open-box Airflow & Air Quality?

Discounts on Airflow & Air Quality at OpenBoxFox currently average 28% off retail across 23 live listings, with prices from $8 to $2,164. Savings are measured against the manufacturer's list price.

Are open-box and refurbished Airflow & Air Quality safe to buy?

Yes — every listing shows the seller's condition grade (from open-box "Like New" to certified refurbished) before you buy. You purchase directly from the seller, such as Amazon, and that seller's standard return policy applies to your order.

Which Airflow & Air Quality brands are on sale open-box right now?

The most-listed brands in Airflow & Air Quality at the moment are Triplett, Testo, PinoTec, bonoch and KAYENQO. New open-box inventory arrives daily, so brand availability changes often.

How often are Airflow & Air Quality deals updated?

OpenBoxFox syncs Airflow & Air Quality inventory from partner stores throughout the day. Sold-out listings are removed automatically and new deals appear shortly after we find them.