It’s getting cheaper to filter carbon dioxide out of the air. Sucking CO2 out of the air is still a very costly endeavor, but one company has taken a big stride toward making the technology ...

Activated carbon filters can last between three to six months. Electrostatic air filters can last for years. Again, these estimates will vary by air purifier model and the conditions of your home.

Key features: Pre-filter, multi-layer HEPA filter, activated carbon filter, air quality indicator, timer, auto mode, sleep mode, smart controls. Product launched: September 2019 Price history: For ...