This affordable but effective smart air purifier is even cheaper for Black Friday

It's a pleasure to see the well-performing and feature-packed air purifier we rated 4.5 stars get the Black Friday treatment. And this $30 discount has made this good-value Levoit offering even more affordable.

With an intuitive app and useful smart features, this is a great saving to see on this well-rated smart air purifier. With £30 off for Black Friday, this already affordable little purifier is even more tempting.

This highly rated smart air purifier boasts a great range of useful features and performed fantastically during my testing. It was already my top recommendation, so this $150 discount makes it a must-buy.

The HP1 is an all-in-one fan, heater, and purifier that's now at its lowest-ever price, with $160 off. It's an updated version of the popular HP10 model, which I've been using daily since the weather turned cold, and now features daily app control so you can check in and change settings when you're out of the house.

Price check: Walmart: $499.99| Best Buy: $499.99 | Dyson: $499.99

This is a new addition to the Dyson lineup, so while the 15% discount doesn't look that impressive, we weren't expecting a price drop at all. The HushJet is Dyson's first compact purifier, and the mechanism has been completely redesigned to enable it to purify lots of air quickly and quietly, without needing a massive machine. It's available in a couple of colorways.

Price check: Walmart: $299.99 | Best Buy: $299.99 | Dyson: $299.99