BREATHE|Smart Personal Pollution & Air Quality Monitor, Measures Outdoor and Indoor air quality. Monitors Dust, Smoke, PM2.5 Air Pollution. Air Quality Tester - Reduce Your Exposure to Toxic Air.

Absolutely fantastic. I suffer from asthma and was looking for something that monitored the air. The moment I found this I instantly bought it. And what a brilliant decision that was. It was so easy to set up, no apps or anything needed. I took it from room to room as an experiment. The lower the number the cleaner the air is. The lounge was about 4 but when I took it into the kitchen where food was being cooked on the gas cooker it zoomed up. Past 100, 200, 300 it was telling people with health conditions to evacuate the room! Now I know why I always feel weak when food is being cooked.The other fascinating thing was the night after Bonfire night. Even though we'd kept all of the doors and windows shut the air inside the lounge was really high from all the smoke from the fireworks.An amazing little device and everyone with breathing problems should have one.

Worked fine for a few weeks and now the screen flickers on and off despite resetting. Very unhappy. For nearly £100 I expect it to work! Have complained to the company but wont hold my breath. Just to put the record straight the suppliers after sale service was outstanding. They contacted me almost immediately and replaced the item with no quibbling. It is now sitting working away on my desk. Very impressed.

The unit is very neat, compact and light. It felt sturdy to begin with - more on that later. I like the readout and feel that it is easy to use, though when trying to get a reading over time the screen keeps on going to sleep and then when it wakes on touch it shows warning text instead of the normal readout which is a little annoying. The LED status would have suited this scenario much better but often doesn't work at all. Battery life is poor but more importantly the unit doesn't charge anymore. I've always used the dock to charge it but felt that the unit never quite sat right. It seemed as though the male connector pin was pushing the port on the unit and in the end I believe this contact has unseated the USB-C port on the unit breaking it completely.Overall the £80 I paid would have been worth it IF it still worked! Unfortunately it was a waste of money and only lasted me 2 months.

It appears to function satisfactorily at present. Apart from turning it OFF i have no idea how long the battery will last or how to renew it .Instructions INADEQUATE, need advice on battery life/renewal etc.

Incredible little product. If Apple made air quality monitors, this would be theirs.Very impressed with product and simple to use. Incredibly sensitive - even picked up air quality change when grilling kippers!Totally recommend

This worked well at first but we’ve had it now for around six months & the readings are inaccurate & the screen fuzzy.

A straight forward monitor that is simple to use and easy to understand.

Very good