Consumer Reports said that another type of air cleaner -- "ozone generators" -- produce dangerously high ozone levels.
They are normally powered by a rotary-vane type of air motor.
Los Angeles faced a different type of air pollution — it was less about coal and more about car emissions.
The tiny particles, known as PM2.5, are the most harmful type of air pollution and exacerbate lung and heart conditions.
"They are a fairly new type of air bag and consumers aren't aware of their effectiveness and there aren't many studies to show they are effective".
Chris Early, estates manager of Telefonica, said developers should not get "hung up about the type of air conditioning"; by concentrating solely on energy-saving technologies, developers could lose sight of the wider issues surrounding sustainability.
The officers ordered everyone out of the car and found another weapon, a type of air gun, next to the front passenger's seat.
The ordinary hand bellows, used by early smelters and blacksmiths for working iron and other metals, was a simple type of air compressor.
When heated or moistened from the ground with strong turbulence, this type of air mass develops limited convective stratocumulus cloud forms with scattered light rain or snow showers.
PARIS — Airbus is advising airlines to replace, as a precaution, the type of air speed sensor that malfunctioned on an Air France plane that crash last month, the company confirmed Friday.
Then we design the FLC to synthesize the two characters and identify the type of air targets.
