




Air quality is often an afterthought when traveling, which is why I tested the Protmex Portable 4-in-1 Carbon Monoxide Detector during my recent trips. This device offers peace of mind by monitoring both CO and CO2 levels in a package small enough to slip into any carry-on.
The build quality feels robust despite its mini form factor, and the magnetic suction feature is surprisingly strong on hotel surfaces. With a 1000mAh battery that lasts 48 hours, the device feels durable enough for frequent movement between rooms and offices.
Setting up the device is instantaneous, requiring no complex configurations to get accurate real-time readings. The Type-C charging makes it incredibly convenient to top up alongside my phone, and the audible alarm is clear without being excessively jarring.
Frequent travelers and remote workers who want to ensure their temporary living or office spaces maintain healthy air quality.
The Protmex 4-in-1 earns its 4.92/5 rating by prioritizing simplicity and reliability where it matters most. For $59.00, it is an affordable way to gain total confidence in your environment, no matter where your travels take you.