If you’d prefer to choose an air purifier with a HEPA filter but don’t have heaps to spend, something compact and effective like the Silver Onyx Air Purifier might be better suited.

This purifier uses five stages of filtration which includes both a carbon and HEPA filter, and it’s designed for use in rooms up to 500 square feet in size.

The best thing about the Silver Onyx Air Purifier is the self-regulation mode which means you don’t have to do anything to get it to work. It can read the environment and will run as it sees fit in order to keep the air clean, with five different modes possible.

With a HEPA air purifier for mold and a carbon filter for added filtration, it does a very powerful job for something so affordable.

For the size, it’s a pretty loud machine and when used on the higher settings it’s similar to what you’d hear from a white noise machine. If you want it on at night or get easily irritated by sound, you will probably want to spend a little more to get something that can operate quietly.

The filter requires changing every six months as well, which seems more than others we’ve reviewed, so take the extra costs into consideration.

The Silver Onyx Air Purifier works with 500 square feet of space which is pretty impressive at this price and has an automatic sensor to make sure you receive the freshest air.

It has a mesh pre-filter, true HEPA filter, activated carbon filter, ion generator, and UV-C light, and all of these work together to get rid of up to 99.7% of particles from the air, including mold and its spores.

Weighing less than 5lbs it’s incredibly lightweight and small enough to sit on your bedside table without taking up too much space. It comes with a sleep mode, auto on/off, and a timer so you can ensure it runs however you need it to, even when you’re not awake.

This is one of the cheaper models we’ve reviewed, priced at around $130 on Amazon which also includes free shipping. There’s a one-year limited warranty offered on the device so you get even better value for the low cost.

If you want something lightweight and affordable to filter your home from mold, the Silver Onyx Air Purifier is a smart choice.