This type of air grille's material: Aluminum Alloy, Cold-rolled
Steel, Zinc Steel
Surface Finish: Anodized or powder coated
- ZS-ZP Saggy Gravity air grille-is used for expelling exhaust gas
from a air-conditioning room in positive pressure.
- Under normal circumstances, the blades sag naturally for gravity,
cut off the air exchanging between indoor and outdoor;
- The air indoor will blow open the grille and out of the room when
indoor pressure is bigger than outdoor.
- Meanwhile, the grille can prevent air outdoor flow into the room
even when the outdoor pressure higher than indoor.