HOLLAND, MI — When looking at the big picture as it applies to a building’s HVAC system, the grilles, registers, and diffusers play a more important role than some contractors and technicians may ...

The problem of dirt collecting around ceiling diffusers has been a concern in the air distribution industry for a long time. Some people have asked about this dirt and the impact on indoor air quality ...

Have you been avoiding the growing layer of dust that's developing on your ceiling vents? HVAC registers placed in the ...