Measuring air flow in an HVAC duct can be a tricky business. Paddle wheel and turbine flow meters introduce not only resistance but maintenance issue due to accumulated dust and debris.

Airflow focused front, top, and side mesh panels, with pre-installed 2x 140mm PWM front fans and 1x 120mm rear PWM fan Modular back panel (7-slot, 5-slot) for compatibility with ATX, M-ATX, or ITX ...

An unusual pivoted power-supply mount sets apart the Lancool 207, a Lian Li mid-tower PC case. A low price and a handsome aesthetic bolster its value cred.

But sometimes, it’s hard to figure out what improved really means. Think about air ducts that cool the part after printing. In theory, it should be easy to design a new duct. But how does it ...

The size of your space will determine what filtering capacity, power and air flow (a.k.a. clean air delivery rate or CADR) your device should have. “The higher the CADR, the more particles the a ...

Figure 17. Pitot tube in a wind tunnel. By pointing the tube directly upstream into the flow and measuring the difference between the pressure sensed by the Pitot tube and the pressure of the ...

It's more important than ever to consider air purifiers a commonplace household product. Our planet’s dependence on fossil fuels may be the driving force behind climate change, but it isn't just ...

Research in 4 Continents Links Outdoor Air Pollution to Differences in Children's Brains Oct. 1, 2024 — A research team systematically analyzed 40 empirical studies, the majority of which had ...

Lian Li introduced the LANCOOL 207 mid-tower PC case on October 3, 2024. Available in two color variants—black and white—the LANCOOL 207 is designed with a compact footprint suitable for a mid ...

Despite decades of progress, the air quality in the United States has started to decline over the past few years, according to data in the Environmental Protection Agency's 2024 "Our Nation’s ...

Covering its power supply air inlet, the Lancool 207’s only dust filter slides out from beneath the bottom edge of its front panel. Around back, we find our first indication of how Lian Li was ...