What is ACH? ACH (air changes per hour) is the measure of outside air volume added to a space divided by the volume of that space over a set period of time, according to AHAM. In essence ...

It’s easy to dismiss Dhaka as an unliveable city. The challenge is to replace that tantrum with the determination to make the ...

Eco-friendly airships are being brought to market by several start-ups, which believe that the newfangled zeppelins could ...

We spend nearly all our time indoors, but rarely think about what is in the air we breathe. Clean air protects us from ...

In an effort to combat the congestion at the airport, the FAA has announced a plan to reduce the number of flights each day, ...

Extreme weather events are the most dramatic consequence of climate change, but there are many smaller ways it disturbs our ...

Knowing your unit’s CADR can help you determine how many air changes per hour (ACH) it’s capable of, or how many times all the air in a space is cleaned. The bigger the room, the more airflow ...

2025 RS e-tron GT Performance in a few words: A true driver's machine, a very comfortable daily driver, more fun than ...

Fewer air changes per hour equate to a more energy-efficient house. “The National Construction Code (for a seven-star rating) is 10 air changes per hour,” says Drage. “But there is no ...

ft. coverage area with 2 air changes per hour and a CADR of 315 CFM / 535 m³/h. Via the Rabbit Air App, you can monitor the air quality and control the device’s different functionalities.