How to Choose the Best Air Purifier for Your Home in 2025

As the Earth gears up for another trip around the sun, it’s time to get ready for new beginnings. The start of a new year is the perfect time to make changes in our lives. In fact, most of us like to start the new year with New Year resolutions, whether it is exercising regularly or eating healthier. But what good are those resolutions if you’re still breathing polluted air, which can harm your health in numerous ways?

That’s where an air purifier comes in. Designed to filter out airborne pollutants and particles, air purifiers improve the air quality in a given space. But how to know which is the best air purifier for your home? Don’t worry, here are some key factors you must consider when choosing the right air purifier for your home. 

1. Type of Filters

There are two main types of filters used in air purifiers–HEPA (High-Efficiency Particulate Air) and activated carbon. HEPA filters are the gold standard of filtration, especially for allergens like dust, pollen, dander and mould spores. Look for HEPA 13/14 filters as they can remove particles as small as 0.3 microns. Activated carbon filters, on the other hand, are highly effective at absorbing odours, gases and chemicals. 

Choose an air purifier that uses these filters in conjunction for maximum effectiveness. All our MedicAir air purifiers, for instance, are equipped with HEPA 13/14 activated carbon filters that provide comprehensive coverage against both particles and odours. Plus, our safe UV technology protects against viruses, bacteria, and other pathogens without emitting ozone.

2. Size of the Room

Besides the filters, the room where you’ll be placing the air purifier can also impact the performance of your air purifier. So, consider the size of the room before choosing an air purifier. A larger room requires a more powerful device that can effectively filter the air in a short span of time. For maximum efficiency, select an air purifier that covers an area exceeding the size of your room.

To get an accurate estimate, you can use our MedicAir Product Finder, which helps determine the right air purifier for your needs. Additionally, it can calculate how many units you’ll need based on your room’s dimensions. 

3. Clean Air Delivery Rate (CADR)

The dimensions of your room play an important role in determining the choice of an air purifier but so does the CADR. Each air purifier has a CADR rating that takes into account the volume of air the air purifier can clean. It basically measures the air purifier’s ability to remove pollutants from the air. The best air purifier is one with a high CADR rating, so it can effectively handle the air quality in your home. 

Our MedicAir Pro Mini, for instance, has a CADR of 410m³/h, which makes it more than sufficient for an average-sized room. Our MedicAir Pro, on the other hand, offers a 605 m³/h CADR that makes it ideal for larger rooms or open-plan layouts. 

4. Noise Levels

If you live in a polluted area or suffer from allergies, chances are you’ll be using the air purifier around the clock. Most air purifiers produce a constant humming noise that can be disturbing, especially if you’re working or sleeping. So, before buying an air purifier, make sure to check its noise levels. Look for an air purifier with a decibel rating of 30 or lower to ensure it won’t disrupt your sleep. 

Our MedicAir Pro Mini is known for its whisper-silent operation, operating at as low as 21 dB. So quiet that you can sleep next to it. With MedicAir, using an air purifier doesn’t have to be a trade-off between sleep and air quality. 

5. Cost and Availability of Replacement Filters

Finally, consider the cost and availability of replacement filters. Some air purifiers require frequent filter replacements, the cost of which can add up over time. Look for a model with affordable and easily available filters to make maintenance easier and less expensive. And make sure to check the manufacturer's recommended replacement schedule for the filters. Some filters may need to be replaced every 3-6 months, while others may last up to a year. 

Our MedicAir filters are built to last 6 to 12 months, depending on your air quality and usage. When its life drops to 10%, your unit will alert you with a red flash. You can also sign up for our filter replacement subscription for extra convenience. This way, you'll automatically receive a new filter every nine months at a discount, ensuring your air stays clean.

So, start 2025 by making your home a haven of fresh, clean and safe air by investing in a MedicAir air purifier!