Ambient (outdoor) air pollution is estimated to have caused 4.2 million premature deaths worldwide in 2019.
Identify the specific reasons for buying an air purifier. Are you looking to reduce allergens, eliminate odors, or address concerns about indoor air quality?
Determine the square footage of the room where you plan to use the air purifier. Different models are designed for different room sizes, so choose one that can adequately cover your space.
Understand the type of filtration technology used in the air purifier. High-efficiency particulate air (HEPA) filters are effective at capturing small particles, while activated carbon filters can help with odors and gases. Some purifiers may also use UV-C or other technologies.
Check the Clean Air Delivery Rate (CADR) rating, which indicates the volume of clean air the purifier can deliver. Look for a CADR rating suitable for your room size.
Consider the noise level of the air purifier, especially if you plan to use it in a bedroom or quiet office space. Some models offer quiet or "sleep" modes.
Understand the maintenance requirements, including how often you'll need to replace filters and clean the unit. Factor in ongoing costs for filter replacements.
Look for an energy-efficient model to minimize electricity consumption, especially if you plan to run it continuously.
Check the manufacturer's warranty and the availability of customer support in case you encounter issues with your air purifier.