Left alone, the air in a house can get dusty and stale from lack of circulation. Since you can’t have a forest of air-purifying trees in your home, man-made devices will just have to do. Air purifiers are a great device for your house to keep your air fresh and breathable. The fan in the air purifier catches dust, pollen, smoke, and odors to circulate through a filter, trapping impurities, creating much healthier air.

Here are the four best air purifiers:

1. Alen BreatheSmart Classic Large Room Air Purifier
Perhaps the most stylish is the Alen BreatheSmart Classic Large Room Air Purifier. It’s a simple and sleek little device that comes in various chic styles and colors. You can get one with an outer layer made of oak or maple, perfect for a rustic look. But there’s more to it than its looks. It has a high efficiency particulate air (HEPA) filter. This type of filter is particularly good at eliminating air pollutants, with thin fiberglass threads that trap 99.7% of harmful particles. This air purifier is certified by California Air Resource Board for quality assurance. Another benefit of this appliance is a light sensor that changes depending on how clean your air is. You can also rest assured that your house will remain nice and quiet with this air purifier.

2. Philips Smart Air Purifier
Dust bunnies and allergens don’t stand a chance against this air purifier, which has a carbon filter and HEPA filter. Air will feel fresh and no odors will be able to linger. In its normal setting it uses sensors to detect changes in the air and adjusts its fan speed accordingly. It also features four other settings. The other settings are high speed bacteria, virus, and extra sensitive allergen mode. The Philips Smart Air Purifier will notify you when the filters start to get worn out. When the appliance becomes exhausted it will automatically shut off to protect from overheating.

3. Blueair Blue Pure 211+
The Blueair Blue Pure 211+ comes in various sizes and fun colors. It’s super simple to use with just one button! It uses Swedish filter technology to trap not only dust, dog hair, smoke, and odors, but it eliminates airborne pollutants such as certain viruses and bacteria. This will help to keep your family safe and healthy. It uses a carbon filter to filter out chemicals and pollutants. With several settings for sound, you can control its volume to be quiet as a whisper, or loud as a rainfall. Perfect if you like white noise in the background. One of the best things about this appliance is it is energy efficient, so it reduces carbon dioxide emissions. Great for your family’s health and the environment’s health!

4. Honeywell True HEPA Allergen Air Purifier
This device is for extra large rooms, so you may want this one if you have a large, spacious house with much air to be purified. The HEPA filter traps 99.7% of particles and can help to contain certain airborne viruses. It circulates and filters the air five times a day, removing allergens and odors. Another nice feature of this air purifier is that a protection plan is available. You can get a three- or four-year protection plan, so if anything happens to it the parts and repair are covered by Honeywell.