Xiaomi Air Purifier 4 Smart APP Control CADR Up to 400m3/h OLED Display, Purify Pollen and Reduce Harmful Particles, Antiviral Coating Filter, Eliminated Virus* Effective 24-48m2 Room Size

I have a large dining/lounge so needed a bigger unit. I bought it to combat hayfever and it has really helped. It is light enough to transport to my bedroom at night and it runs quietly. Very happy with this purchase so far. I have a large dining/lounge so needed a bigger unit. I bought it to combat hayfever and it has really helped. It is light enough to transport to my bedroom at night and it runs quietly. Very happy with this purchase so far.

I am impressed with the customer service who helped me regain my confidence with the replascement of my lost product delivery. Many thanks for the professional help. I am impressed with the customer service who helped me regain my confidence with the replascement of my lost product delivery. Many thanks for the professional help.

I had this for a month now. Like it. I had this for a month now. Like it.

I was sceptical at first, but now I'm completely convinced. The air quality has improved greatly. I am amazed how dust and rubbish is in the air in winter. When airing, the number of particles increases significantly. However, the automatic mode still ensures good air. Have had no problems with the device and it is very quiet as it does its thing I was sceptical at first, but now I'm completely convinced. The air quality has improved greatly. I am amazed how dust and rubbish is in the air in winter. When airing, the number of particles increases significantly. However, the automatic mode still ensures good air. Have had no problems with the device and it is very quiet as it does its thing

This is very quiet compare to when running at low setting but gets noisy on high. Make sure you buy the air filter based on 30% of advertised area so you can avoid running the fan high.
The sensor is also more accurate.

There is improvement in maintenance, for example the cover can be removed and the fan can be cleaned. All sensor can be cleaned as well.

However the light cannot be totally turn off at night compare to Pro. Having said that It is not very bright so it is not too bad. This is very quiet compare to when running at low setting but gets noisy on high. Make sure you buy the air filter based on 30% of advertised area so you can avoid running the fan high.
The sensor is also more accurate.

There is improvement in maintenance, for example the cover can be removed and the fan can be cleaned. All sensor can be cleaned as well.

However the light cannot be totally turn off at night compare to Pro. Having said that It is not very bright so it is not too bad.

My partner has a dust allergy and due to the shelving and items around the house dust would be visible around the room every 2 days. since i got this i have no seen dust for over a week, my room feels fresh and i dont remember the last time my room smell like food after eating in it.
super quiet when air is clean, easy to use and once on and in automode you kind of just forget about it My partner has a dust allergy and due to the shelving and items around the house dust would be visible around the room every 2 days. since i got this i have no seen dust for over a week, my room feels fresh and i dont remember the last time my room smell like food after eating in it.
super quiet when air is clean, easy to use and once on and in automode you kind of just forget about it

good product. easy to use app and gets the job done. good product. easy to use app and gets the job done.

I originally purchased a couple of these a couple of weeks ago to give our office and print room an extra degree of protection from Covid, but I've also found they have helped remove chemical fumes and gasses from our printing room, and have stopped a niggly dry cough from one of our staff which appears to have been a sensitivity to the chemicals. They arrived promptly, were easy to get going and don't take up much space. Wish I'd got some ages ago. I originally purchased a couple of these a couple of weeks ago to give our office and print room an extra degree of protection from Covid, but I've also found they have helped remove chemical fumes and gasses from our printing room, and have stopped a niggly dry cough from one of our staff which appears to have been a sensitivity to the chemicals. They arrived promptly, were easy to get going and don't take up much space. Wish I'd got some ages ago.

Ordered as a click and collect but due to an error on PB Tech side, it took 20 minutes to find out I had to pay a second time because the payment hadn't been transferred between stores, thus negating any advantage of click and collect. Would have been far quicker to wander in and pick from the shelf. On getting the product home, the packaging had been previously opened, and importantly the filter packaging slashed. There was no explanation for this.
The product is as advertised, but PB Tech customer service is 2-star level. Ordered as a click and collect but due to an error on PB Tech side, it took 20 minutes to find out I had to pay a second time because the payment hadn't been transferred between stores, thus negating any advantage of click and collect. Would have been far quicker to wander in and pick from the shelf. On getting the product home, the packaging had been previously opened, and importantly the filter packaging slashed. There was no explanation for this.
The product is as advertised, but PB Tech customer service is 2-star level.